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ASTM D5379/D5379M-12

(Test Method)

Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method

Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method

SIGNIFICANCE AND USE
5.1 This test method is designed to produce shear property data for material specifications, research and development, quality assurance, and structural design and analysis. Either in-plane or interlaminar shear properties may be evaluated, depending upon the orientation of the material coordinate system relative to the loading axis. Factors that influence the shear response and should therefore be reported include the following: material, methods of material preparation and lay-up, specimen stacking sequence, specimen preparation, specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, time at temperature, void content, and volume percent reinforcement.  
5.2 In anisotropic materials, properties may be obtained in any of the six possible shear planes by orienting the testing plane of the specimen with the desired material plane (1-2 or 2-1, 1-3 or 3-1, 2-3  or 3-2). Only a single shear plane may be evaluated for any given specimen. Properties, in the test direction, which may be obtained from this test method, include the following:  
5.2.1 Shear stress/strain response,  
5.2.2 Ultimate strength,  
5.2.3 Ultimate strain, and  
5.2.4 Shear chord modulus of elasticity.
SCOPE
1.1 This test method covers the shear properties of composite materials reinforced by high-modulus fibers. The composite materials are limited to continuous-fiber or discontinuous-fiber-reinforced composites in the following material forms:  
1.1.1 Laminates composed only of unidirectional fibrous laminae, with the fiber direction oriented either parallel or perpendicular to the loading axis.  
1.1.2 Laminates composed only of woven fabric filamentary laminae with the warp direction oriented either parallel or perpendicular to the loading axis.  
1.1.3 Laminates composed only of unidirectional fibrous laminae, containing equal numbers of plies oriented at 0 and 90° in a balanced and symmetric stacking sequence, with the 0° direction oriented either parallel or perpendicular to the loading axis.  
1.1.4 Short-fiber-reinforced composites with a majority of the fibers being randomly distributed. Note 1—This shear test concept was originally developed without reference to fiber direction for use on isotropic materials such as metals or ceramics.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
14-Jul-2012
ICS
83.140.20 - Laminated sheets
Technical Committee
D30 - Composite Materials
Drafting Committee
D30.04 - Lamina and Laminate Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D5379/D5379M-05 - Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method
Effective Date
15-Jul-2012
Referred By
ASTM C1292-22 - Standard Test Method for Shear Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperatures
Effective Date
15-Jul-2012
Referred By
ASTM D4255/D4255M-20e1 - Standard Test Method for In-Plane Shear Properties of Polymer Matrix Composite Materials by the Rail Shear Method
Effective Date
15-Jul-2012
Referred By
ASTM D6856/D6856M-03(2016) - Standard Guide for Testing Fabric-Reinforced “Textile” Composite Materials
Effective Date
15-Jul-2012
Referred By
ASTM D3410/D3410M-16e1 - Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading
Effective Date
15-Jul-2012
Referred By
ASTM D6641/D6641M-16e2 - Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture
Effective Date
15-Jul-2012
Referred By
ASTM D4762-18 - Standard Guide for Testing Polymer Matrix Composite Materials
Effective Date
15-Jul-2012
Referred By
ASTM C1469-22 - Standard Test Method for Shear Strength of Joints of Advanced Ceramics at Ambient Temperature
Effective Date
15-Jul-2012
Referred By
ASTM D7078/D7078M-20e1 - Standard Test Method for Shear Properties of Composite Materials by V-Notched Rail Shear Method
Effective Date
15-Jul-2012
Referred By
ASTM D7745-19 - Standard Practice for Testing Pultruded Composites
Effective Date
15-Jul-2012
Referred By
ASTM D7031-11(2019) - Standard Guide for Evaluating Mechanical and Physical Properties of Wood-Plastic Composite Products
Effective Date
15-Jul-2012

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ASTM D5379/D5379M-12 - Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam MethodASTM D5379/D5379M-12 - Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D5379/D5379M − 12
Standard Test Method for
Shear Properties of Composite Materials by the V-Notched
1
Beam Method
This standard is issued under the fixed designation D5379/D5379M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the shear properties of compos-
D792Test Methods for Density and Specific Gravity (Rela-
itematerialsreinforcedbyhigh-modulusfibers.Thecomposite
tive Density) of Plastics by Displacement
materials are limited to continuous-fiber or discontinuous-
D883Terminology Relating to Plastics
fiber-reinforced composites in the following material forms:
D2584Test Method for Ignition Loss of Cured Reinforced
1.1.1 Laminates composed only of unidirectional fibrous
Resins
laminae, with the fiber direction oriented either parallel or
D2734TestMethodsforVoidContentofReinforcedPlastics
perpendicular to the loading axis.
D3171Test Methods for Constituent Content of Composite
1.1.2 Laminatescomposedonlyofwovenfabricfilamentary
Materials
laminae with the warp direction oriented either parallel or
D3878Terminology for Composite Materials
perpendicular to the loading axis. D5229/D5229MTestMethodforMoistureAbsorptionProp-
erties and Equilibrium Conditioning of Polymer Matrix
1.1.3 Laminates composed only of unidirectional fibrous
Composite Materials
laminae, containing equal numbers of plies oriented at 0 and
E4Practices for Force Verification of Testing Machines
90°inabalancedandsymmetricstackingsequence,withthe0°
E6Terminology Relating to Methods of MechanicalTesting
directionorientedeitherparallelorperpendiculartotheloading
E111Test Method for Young’s Modulus, Tangent Modulus,
axis.
and Chord Modulus
1.1.4 Short-fiber-reinforced composites with a majority of
E122PracticeforCalculatingSampleSizetoEstimate,With
the fibers being randomly distributed.
Specified Precision, the Average for a Characteristic of a
Lot or Process
NOTE 1—This shear test concept was originally developed without
E177Practice for Use of the Terms Precision and Bias in
referencetofiberdirectionforuseonisotropicmaterialssuchasmetalsor
ceramics. ASTM Test Methods
E251Test Methods for Performance Characteristics of Me-
1.2 The values stated in either SI units or inch-pound units
tallic Bonded Resistance Strain Gages
are to be regarded separately as standard. The values stated in
E456Terminology Relating to Quality and Statistics
each system may not be exact equivalents; therefore, each
E1237Guide for Installing Bonded Resistance Strain Gages
system shall be used independently of the other. Combining
2.2 Other Documents:
values from the two systems may result in non-conformance
ANSI Y14.5M-1982 Geometric Dimensioning and Toler-
with the standard.
3
ancing
1.3 This standard does not purport to address all of the ANSI/ASME B 46.1-1985 Surface Texture (Surface
3
Roughness, Waviness, and Lay)
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
2.3 ASTM Adjuncts:
4
priate safety and health practices and determine the applica-
V-Notched Beam Shear Fixture Machining Drawings
bility of regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This test method is under the jurisdiction of ASTM Committee D30 on Standards volume information, refer to the standard’s Document Summary page on
Composite Materialsand is the direct responsibility of Subcommittee D30.04 on the ASTM website.
3
Lamina and Laminate Test Methods. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved July 15, 2012. Published February 2013. Originally 4th Floor, New York, NY 10036.
4
approved in 1993. Last previous edition approved in 2005 as D5379/D5379M–05. Available from ASTM International Headquarters. Order Adjunct No.
DOI: 10.1520/D5379_D5379M-12. ADJD5379.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5379/D5379M − 12
3. Terminology 3.3.2 CV—coefficient of variation statistic of a sample
population for a given property (in percent).
3.1 Definitions—Terminology D3878 defines terms relating
su
3.3.3 F —ultimate shear strength in the test direction.
to high-modulus fibers and their composites. Terminology
u
D883definestermsrelatingtoplastics.TerminologyE6defines
3.3.4 F —ultimate strength in the test direction.
terms
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5379/D5379M − 05 D5379/D5379M − 12
Standard Test Method for
Shear Properties of Composite Materials by the V-Notched
1
Beam Method
This standard is issued under the fixed designation D5379/D5379M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the shear properties of composite materials reinforced by high-modulus fibers. The composite
materials are limited to continuous-fiber or discontinuous-fiber-reinforced composites in the following material forms:
1.1.1 Laminates composed only of unidirectional fibrous laminae, with the fiber direction oriented either parallel or
perpendicular to the loading axis.
1.1.2 Laminates composed only of woven fabric filamentary laminae with the warp direction oriented either parallel or
perpendicular to the loading axis.
1.1.3 Laminates composed only of unidirectional fibrous laminae, containing equal numbers of plies oriented at 0 and 90° in
a balanced and symmetric stacking sequence, with the 0° direction oriented either parallel or perpendicular to the loading axis.
1.1.4 Short-fiber-reinforced composites with a majority of the fibers being randomly distributed.
NOTE 1—This shear test concept was originally developed without reference to fiber direction for use on isotropic materials such as metals or ceramics.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the
inch-pound units are shown in brackets. The values stated in each system aremay not be exact equivalents; therefore, each system
mustshall be used independently of the other. Combining values from the two systems may result in nonconformancenon-
conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D2734 Test Methods for Void Content of Reinforced Plastics
D3171 Test Methods for Constituent Content of Composite Materials
D3878 Terminology for Composite Materials
D5229/D5229M Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite
Materials
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E111 Test Method for Young’s Modulus, Tangent Modulus, and Chord Modulus
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E251 Test Methods for Performance Characteristics of Metallic Bonded Resistance Strain Gauges
1
This test method is under the jurisdiction of ASTM Committee D30 on Composite Materialsand is the direct responsibility of Subcommittee D30.04 on Lamina and
Laminate Test Methods.
Current edition approved March 1, 2005July 15, 2012. Published March 2005February 2013. Originally approved in 1993. Last previous edition approved in 19982005
as D5379/D5379M - 98.D5379/D5379M – 05. DOI: 10.1520/D5379_D5379M-05.10.1520/D5379_D5379M-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5379/D5379M − 12
E456 Terminology Relating to Quality and Statistics
E1237 Guide for Installing Bonded Resistance Strain Gages
2.2 Other Documents:
3
ANSI Y14.5M-1982 Geometric Dimensioning and Tolerancing
3
ANSI/ASME B 46.1-1985 Surface Texture (Surface Roughness, Waviness, and Lay)
2.3 ASTM Adjuncts:
4
V-Notched Beam Shear Fixture Machining Drawings
3. Terminology
3.1 Definitions—Terminology D3878 defines terms relating t
...

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SIGNIFICANCE AND USE
5.1 Refer to Guide D8509.
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SIGNIFICANCE AND USE
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SCOPE
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SCOPE
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5.1 This test practice is designed to produce tensile property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors that influence the tensile response and should therefore be reported include the following: materials (laminates and adhesive), methods of material preparation including surface preparation prior to bonding, lay-ups, specimen stacking sequence, joint taper ratio or step length, ply overlap length, material relative thicknesses and stiffness of the parent and repair laminates, adhesive bond stiffness, specimen preparation, specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, time at temperature, void content, and volume percent reinforcement. Properties in the test direction, which may be obtained from this test practice, include the following:  
5.1.1 Ultimate tensile strength (based on the nominal parent material thickness), (Fptu).  
5.1.2 Ultimate tensile strength (based on the nominal repair material thickness), (Frtu).  
5.1.3 Ultimate running force per repair ply, (Nj).
SCOPE
1.1 This test practice defines the procedure for determination of the tensile strength of a tapered or stepped joint of polymer matrix composite materials. It is applicable to secondary bonded or co-bonded laminates with either unidirectional plies or woven fabric reinforcements. The materials to be bonded may be different material systems. In the bondline, a separate adhesive material may or may not be used (example: adhesives may be used with a prepreg system or may not be used with a wet lay-up repair system). The range of acceptable test laminates and thicknesses is described in 8.2.1.  
1.2 This practice supplements Test Method D3039/D3039M for tensile loading. Several important test specimen parameters (for example, joint length, ply overlaps, step depth, and taper ratio) are not mandated by this practice, however, these parameters are required to be specified and reported to support repeatable results.  
1.3 Unidirectional (0° ply orientation) tape composites, textile composites, as well as multidirectional composite laminates, can be tested.  
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.4.1 Within the text the inch-pound units are shown in brackets.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D2344/D2344M-22(Test Method)
Standard Test Method for Short-Beam Strength of Polymer Matrix Composite Materials and Their Laminates

SIGNIFICANCE AND USE
5.1 In most cases, because of the complexity of internal stresses and the variety of failure modes that can occur in this specimen, it is not generally possible to relate the short-beam strength to any one material property. However, failures are normally dominated by resin and interlaminar properties, and the test results have been found to be repeatable for a given specimen geometry, material system, and stacking sequence  (4).  
5.2 Short-beam strength determined by this test method can be used for quality control and process specification purposes. It can also be used for comparative testing of composite materials, provided that failures occur consistently in the same mode (5) .  
5.3 This test method is not limited to specimens within the range specified in Section 8, but is limited to the use of a loading span length-to-specimen thickness ratio of 4.0 and a minimum specimen thickness of 2.0 mm [0.08 in.].
SCOPE
1.1 This test method determines the short-beam strength of high-modulus fiber-reinforced composite materials. The specimen is a short beam machined from a curved or a flat laminate up to 6.00 mm [0.25 in.] thick. The beam is loaded in three-point bending.  
1.2 Application of this test method is limited to continuous- or discontinuous-fiber-reinforced polymer matrix composites, for which the elastic properties are balanced and symmetric with respect to the longitudinal axis of the beam.  
1.3 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3.1 Within the text, the inch-pound units are shown in brackets.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM E1922/E1922M-22(Test Method)
Standard Test Method for Translaminar Fracture Toughness of Laminated and Pultruded Polymer Matrix Composite Materials

SIGNIFICANCE AND USE
5.1 The parameter KTL  determined by this test method is a measure of the resistance of a polymer matrix composite laminate to notch-tip damage and effective translaminar crack growth under opening mode loading. The result is valid only for conditions in which the damage zone at the notch tip is small compared with the notch length and the in-plane specimen dimensions. Alternately, for materials exhibiting distributed damage in a larger volume, observed force-displacement and discrete damage events are still valid structural responses for certain specific engineering applications.  
5.2 This test method can serve the following purposes. In research and development, (a) KTL data can quantitatively establish the effects of fiber and matrix variables and stacking sequence of the laminate on the translaminar fracture resistance of composite laminates; and (b) quantified distributed damage measurements can be used to validate progressive composite damage models. In structural design, KTL data can, within the constraints of the specimen geometry and loading, be used to assess composite laminate resistance to damage growth from edge flaws and notches.  
5.3 The translaminar fracture toughness,  KTL, as well as distributed damage observations, determined by this test method may be a function of the testing speed and temperature. This test method is intended for room temperature and quasi-static conditions, but it can apply to other test conditions provided that the requirements of 13.2 and 13.3 are met. Application of KTL in the design of service components should be made with awareness that the test parameters specified by this test may differ from service conditions, possibly resulting in a different material response than that seen in service. Distributed damage observations are also limited to the material and geometry tested, but may be more generally applied to a variety of structural analysis validation applications.  
5.4 Not all types of laminated polymer matrix...
SCOPE
1.1 This test method covers the determination of translaminar fracture toughness, KTL, for laminated, molded, or pultruded polymer matrix composite materials of various fiber orientations using test results from monotonically loaded notched specimens. If the material response is such that the KTL calculation is not valid, alternate reporting methods are provided.  
1.2 This test method is applicable to room temperature laboratory air environments.  
1.3 Composite materials that can be tested by this test method are not limited by thickness or by type of polymer matrix or fiber, provided that the specimen sizes and the test results meet the requirements of this test method. This test method was developed primarily from test results of various carbon fiber – epoxy matrix laminates and from additional results of glass fiber – epoxy matrix, glass fiber-polyester matrix pultrusions and carbon fiber – bismaleimide matrix laminates (1-4, 5, 6).2  
1.4 A range of eccentrically loaded, single-edge-notch tension, ESE(T), specimen sizes with proportional planar dimensions is provided, but planar size may be variable and adjusted, with associated changes in the applied test load. Specimen thickness is a variable, independent of planar size.  
1.5 Specimen configurations other than those contained in this test method may be used. It is particularly important that the requirements discussed in 5.1 and 5.4 regarding contained notch-tip damage be met when using alternative specimen configurations in conjunction with the KTL calculation.  
1.6 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.6.1 Within the text, the inch-pound units are shown ...

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ASTM
ASTM D5449/D5449M-22(Test Method)
Standard Test Method for Transverse Compressive Properties of Hoop Wound Polymer Matrix Composite Cylinders

SIGNIFICANCE AND USE
5.1 This test method is designed to produce transverse compressive property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors that influence the transverse compressive response and should therefore be reported are: material, method of material preparation, specimen preparation, specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, void content, and fiber volume fraction. Properties in the test direction that may be obtained from this test method are:  
5.1.1 Transverse compressive strength, σ22uc,  
5.1.2 Transverse compressive strain at failure, ε22uc,  
5.1.3 Transverse compressive modulus of elasticity, E22, and  
5.1.4 Poisson's ratio, γ21.
SCOPE
1.1 This test method determines the transverse compressive properties of wound polymer matrix composites reinforced by high-modulus continuous fibers. It describes testing of hoop wound (90°) cylinders in axial compression for determination of transverse compressive properties.  
1.2 The technical content of this test method has been stable since 1993 without significant objection from its stakeholders. As there is limited technical support for the maintenance of this test method, changes since that date have been limited to items required to retain consistency with other ASTM D30 Committee standards, including editorial changes and incorporation of updated guidance on specimen preconditioning and environmental testing. The test method, therefore, should not be considered to include any significant changes in approach and practice since 1993. Future maintenance of the test method will only be in response to specific requests and performed only as technical support allows.  
1.3 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3.1 Within the text, the inch-pound units are shown in brackets.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D5450/D5450M-22(Test Method)
Standard Test Method for Transverse Tensile Properties of Hoop Wound Polymer Matrix Composite Cylinders

SIGNIFICANCE AND USE
5.1 This test method is used to produce transverse tensile property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors which influence the transverse tensile response and should, therefore, be reported are: material, methods of material preparation, specimen preparation, specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, void content, and fiber volume fraction. Properties, in the test direction, which may be obtained from this test method include:  
5.1.1 Transverse Tensile Strength,    
5.1.2 Transverse Tensile Strain at Failure,    
5.1.3 Transverse Tensile Modulus of Elasticity,  E22, and  
5.1.4 Poisson's Ratio,  υ21.
SCOPE
1.1 This test method determines the transverse tensile properties of wound polymer matrix composites reinforced by high-modulus continuous fibers. It describes testing of hoop wound (90°) cylinders in axial tension for determination of transverse tensile properties.  
1.2 The technical content of this test method has been stable since 1993 without significant objection from its stakeholders. As there is limited technical support for the maintenance of this test method, changes since that date have been limited to items required to retain consistency with other ASTM D30 Committee standards, including editorial changes and incorporation of updated guidance on specimen preconditioning and environmental testing. The test method, therefore, should not be considered to include any significant changes in approach and practice since 1993. Future maintenance of the test method will only be in response to specific requests and performed only as technical support allows.  
1.3 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3.1 Within the text, the inch-pound units are shown in brackets.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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