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ASTM D5448/D5448M-93(2006)

(Test Method)

Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders

Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders

SIGNIFICANCE AND USE
This test method is designed to produce inplane shear property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors that influence the inplane shear 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 as follows:
5.1.1 Inplane Shear Strength, τ12u,  
5.1.2 Inplane Shear Strain at Failure, γ12u , and  
5.1.3 Inplane Shear Modulus, G12.
SCOPE
1.1 This test method determines the inplane shear properties of wound polymer matrix composites reinforced by high-modulus continuous fibers. It describes testing of hoop wound (90°) cylinders in torsion for determination of inplane shear properties.
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 are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the test method.
1.3 This standard does not purport to address all of the safety problems, 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-Jan-2006
ICS
83.120 - Reinforced plastics
Technical Committee
D30 - Composite Materials
Drafting Committee
D30.04 - Lamina and Laminate Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D5448/D5448M-93(2000) - Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders
Effective Date
15-Jan-2006
Replaced By
ASTM D5448/D5448M-11 - Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders
Effective Date
15-Nov-2011
Referred By
ASTM D4762-18 - Standard Guide for Testing Polymer Matrix Composite Materials
Effective Date
15-Jan-2006
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-Jan-2006
Referred By
ASTM D5449/D5449M-22 - Standard Test Method for Transverse Compressive Properties of Hoop Wound Polymer Matrix Composite Cylinders
Effective Date
15-Jan-2006
Referred By
ASTM D5450/D5450M-22 - Standard Test Method for Transverse Tensile Properties of Hoop Wound Polymer Matrix Composite Cylinders
Effective Date
15-Jan-2006

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ASTM D5448/D5448M-93(2006) - Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite CylindersASTM D5448/D5448M-93(2006) - Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders
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ASTM D5448/D5448M-93(2006) - Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders
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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: D5448/D5448M – 93 (Reapproved 2006)
Standard Test Method for
Inplane Shear Properties of Hoop Wound Polymer Matrix
1
Composite Cylinders
This standard is issued under the fixed designation D5448/D5448M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D5229/D5229M Test Method for Moisture Absorption
Properties and Equilibrium Conditioning of Polymer Ma-
1.1 Thistestmethoddeterminestheinplaneshearproperties
trix Composite Materials
of wound polymer matrix composites reinforced by high-
D5449/D5449M Test Method for Transverse Compressive
modulus continuous fibers. It describes testing of hoop wound
Properties of Hoop Wound Polymer Matrix Composite
(90°) cylinders in torsion for determination of inplane shear
Cylinders
properties.
D5450/D5450M Test Method for Transverse Tensile Prop-
1.2 The values stated in either SI units or inch-pound units
erties of Hoop Wound Polymer Matrix Composite Cylin-
are to be regarded separately as standard. Within the text the
ders
inch-pound units are shown in brackets. The values stated in
E6 TerminologyRelatingtoMethodsofMechanicalTesting
each system are not exact equivalents; therefore, each system
E111 Test Method forYoung’s Modulus,Tangent Modulus,
must be used independently of the other. Combining values
and Chord Modulus
from the two systems may result in nonconformance with the
E122 Practice for Calculating Sample Size to Estimate,
test method.
With Specified Precision, the Average for a Characteristic
1.3 This standard does not purport to address all of the
of a Lot or Process
safety concerns, if any, associated with its use. It is the
E177 Practice for Use of the Terms Precision and Bias in
responsibility of the user of this standard to establish appro-
ASTM Test Methods
priate safety and health practices and determine the applica-
E251 Test Methods for Performance Characteristics of Me-
bility of regulatory limitations prior to use.
tallic Bonded Resistance Strain Gauges
2. Referenced Documents
E456 Terminology Relating to Quality and Statistics
2
E691 Practice for Conducting an Interlaboratory Study to
2.1 ASTM Standards:
Determine the Precision of a Test Method
D792 Test Methods for Density and Specific Gravity (Rela-
E1237 GuideforInstallingBondedResistanceStrainGages
tive Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
3. Terminology
D2584 Test Method for Ignition Loss of Cured Reinforced
3.1 Definitions—Terminology D3878 defines terms relating
Resins
to high-modulus fibers and their composites. Terminology
D2734 Test Methods for Void Content of Reinforced Plas-
D883definestermsrelatingtoplastics.TerminologyE6defines
tics
terms relating to mechanical testing. Terminology E456 and
D3171 Test Methods for Constituent Content of Composite
Practice E177 define terms relating to statistics. In the event of
Materials
a conflict between terms, Terminology D3878 shall have
D3878 Terminology for Composite Materials
precedence over other standards.
3
3.2 Description of Terms Specific to This Standard:
1
This test method is under the jurisdiction of ASTM Committee D30 on
Composite Materials and is the direct responsibility of Subcommittee D30.04 on
Lamina and Laminate Test Methods.
3
Current edition approved Jan. 15, 2006. Published January 2006. Originally If the term represents a physical quantity, its analytical dimensions are stated
approved in 1993. Last previous edition approved in 2000 as D5448/D5448M–93 immediately following the term (or letter symbol) in fundamental dimension form,
(2000). DOI: 10.1520/D5448_D5448M-93R06. usingthefollowingASTMstandardsymbologyforfundamentaldimensions,shown
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or within square brackets: [M] for mass, [L] for length, [T] for time, [u] for
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM thermodynamic temperature, and [ nd] for nondimensional quantities. Use of these
Standards volume information, refer to the standard’s Document Summary page on symbolsisrestrictedtoanalyticaldimensionswhenusedwithsquarebrackets,asthe
the ASTM website. symbols may have other definitions when used without the brackets.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D5448/D5448M – 93 (2006)
u
3.2.1 hoopwound,n—awindingofacylindricalcomponent 5.1.2 Inplane Shear Strain at Failure, g , and
12
where the filaments ar
...

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5.2.2 To compare quantitatively the relative values of the damage resistance parameters for sandwich constructions with different facing, core or adhesive materials. The damage response parameters can include dent depth, damage dimensions and location(s), indentation or impact force magnitudes, impact energy magnitudes, as well as the force versus time curve.  
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5.2.4 Quasi-static indentation tests can also be used to identify a specific sequence of damage events (only the final damage state is identifiable after a drop-weight impact test).  
5.3 The properties obtained using these practices can provide guidance in regard to the anticipated damage resistance capability of sandwich structures with similar materials, geometry, stacking sequence, and so forth. However, it must be understood that the damage resistance of a sandwich structu...
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1.1 This practice provides instructions for modifying laminate quasi-static indentation and drop-weight impact test methods to determine damage resistance properties of sandwich constructions. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb, truss cores and fiber-reinforced cores).  
1.2 This practice supplements Test Methods D6264/D6264M (for quasi-static indentation testing) and D7136/D7136M (for drop-weight impact testing) with provisions for testing sandwich specimens. Several important test specimen parameters (for example, facing thickness, core thickness and core density) are not mandated by this practice; however, repeatable results require that these parameters be specified and reported.  
1.3 Three test procedures are provided. Procedures A and B correspond to D6264/D6264M test procedures for rigidlybacked and edge-supported test conditions, respectively. Procedure C corresponds to D7136/D7136M test procedures. All three procedures are suitable for imparting damage to a sandwich specimen in preparation for subsequent damage tolerance testing in accordance with Test Method D8287/D8287M (compressive loading) and Practice D8388/D8388M (flexural loading).  
1.4 In general, Procedure A is considered to be the most suitable procedure for comparative damage resistance assessments, due to reduced influence of flexural stiffness and support fixture characteristics upon damage formation. However, the selection of a test procedure and associated support conditions should be done in consideration of the intended structural application, and as such Procedures B and C may be more appropriate for comparative purposes for some applications.  
1.5 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 ...

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