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ASTM D6742/D6742M-02

(Practice)

Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates

Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates

SCOPE
1.1 This practice provides instructions for modifying open-hole tension and compression test methods to determine filled-hole tensile and compressive strengths. The composite material forms are limited to continuous-fiber reinforced polymer matrix composites in which the laminate is both symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.
1.2 This practice supplements Test Methods D 5766/D 5766M (for tension testing) and D 6484/D 6484M (for compression testing) with provisions for testing specimens that contain a close-tolerance fastener or pin installed in the hole. Several important test specimen parameters (for example, fastener selection, fastener installation method, and fastener hole tolerance) are not mandated by this practice; however, repeatable results require that these parameters be specified and reported.
1.3 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 standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
09-Oct-2002
ICS
83.120 - Reinforced plastics
Technical Committee
D30 - Composite Materials
Drafting Committee
D30.05 - Structural Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D6742/D6742M-01 - Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates
Effective Date
10-Oct-2002
Replaced By
ASTM D6742/D6742M-02(2007) - Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates
Effective Date
01-May-2007
Referred By
ASTM D8387/D8387M-21 - Standard Test Method for High Bypass – Low Bearing Interaction Response of Polymer Matrix Composite Laminates
Effective Date
10-Oct-2002
Referred By
ASTM D6484/D6484M-20 - Standard Test Method for Open-Hole Compressive Strength of Polymer Matrix Composite Laminates
Effective Date
10-Oct-2002
Referred By
ASTM D8509/D8509M-23 - Standard Guide for Test Method Selection and Test Specimen Design for Bolted Joint Related Properties
Effective Date
10-Oct-2002
Referred By
ASTM D4762-18 - Standard Guide for Testing Polymer Matrix Composite Materials
Effective Date
10-Oct-2002

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ASTM D6742/D6742M-02 - Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite LaminatesASTM D6742/D6742M-02 - Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates
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ASTM D6742/D6742M-02 - Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates
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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:D6742/D6742M–02
Standard Practice for
Filled-Hole Tension and Compression Testing of Polymer
1
Matrix Composite Laminates
This standard is issued under the fixed designation D6742/D6742M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D3171 TestMethodsforConstituentContentofComposite
3
Materials
1.1 This practice provides instructions for modifying open-
3
D3878 Terminology for Composite Materials
hole tension and compression test methods to determine
D5229/D5229M Test Method for Moisture Absorption
filled-hole tensile and compressive strengths. The composite
Properties and Equilibrium Conditioning of Polymer Ma-
material forms are limited to continuous-fiber reinforced poly-
3
trix Composite Materials
mermatrixcompositesinwhichthelaminateisbothsymmetric
D 5766/D 5766M Test Method for Open-Hole Tensile
and balanced with respect to the test direction. The range of
3
Strength of Polymer Matrix Composite Laminates
acceptable test laminates and thicknesses are described in
D6484/D6484M TestMethodforOpen-HoleCompressive
8.2.1.
3
Strength of Polymer Matrix Composite Laminates
1.2 This practice supplements Test Methods D 5766/
D6507 Practice for the Fiber Reinforcement Orientation
D5766M (for tension testing) and D6484/D6484M (for
3
Codes for Composite Materials
compressiontesting)withprovisionsfortestingspecimensthat
E6 Terminology Relating to Methods of Mechanical Test-
contain a close-tolerance fastener or pin installed in the hole.
4
ing
Several important test specimen parameters (for example,
E177 Practice for Use of the Terms Precision and Bias in
fastener selection, fastener installation method, and fastener
5
ASTM Test Methods
hole tolerance) are not mandated by this practice; however,
5
E456 Terminology Relating to Quality and Statistics
repeatableresultsrequirethattheseparametersbespecifiedand
E 1309 Guide for Identification of Fiber-Reinforced
reported.
3
Polymer-Matrix Composite Materials in Databases
1.3 The values stated in either SI units or inch-pound units
E1434 GuideforRecordingMechanicalTestDataofFiber-
are to be regarded separately as standard. Within the text the
3
Reinforced Composite Materials in Databases
inch-pound units are shown in brackets. The values stated in
each system are not exact equivalents; therefore, each system
3. Terminology
must be used independently of the other. Combining values
3.1 Definitions—TerminologyD3878definestermsrelating
from the two systems may result in nonconformance with the
to high-modulus fibers and their composites. Terminology
standard.
D883 defines terms relating to plastics. Terminology E6
1.4 This standard does not purport to address all of the
defines terms relating to mechanical testing. Terminology
safety concerns, if any, associated with its use. It is the
E456 and Practice E177 define terms relating to statistics. In
responsibility of the user of this standard to establish appro-
the event of a conflict between terms, Terminology D3878
priate safety and health practices and determine the applica-
shall have precedence over the other standards.
bility of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
2. Referenced Documents
NOTE 1—If the term represents a physical quantity, its analytical
2.1 ASTM Standards: dimensionsarestatedimmediatelyfollowingtheterm(orlettersymbol)in
fundamental dimension form, using the following ASTM International
D792 TestMethodsforDensityandSpecificGravity(Rela-
2
standard symbology for fundamental dimensions, shown within square
tive Density) of Plastics by Displacement
2 brackets:[M]formass,[L]forlength,[T]fortime,[u]forthermodynamic
D883 Terminology Relating to Plastics
temperature,and[nd]fornondimensionalquantities.Useofthesesymbols
is restricted to analytical dimensions when used with square brackets, as
the symbols may have other definitions when used without the brackets.
1
This practice is under the jurisdiction ofASTM Committee D30 on Composite
Materials, and is the direct responsibility of Subcommittee D30.05 on Structural
Test Methods.
3
Current edition approved Oct. 10, 2002. Published November 2002. Originally Annual Book of ASTM Standards, Vol 15.03.
4
published as D6742/D6742M–01. Last previous edition D6742/D6742M–01. Annual Book of ASTM Standards, Vol 03.01.
2 5
Annual Book of ASTM Standards, Vol 08.01. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6742/D6742M–02
3.2.1 nominal
...

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Standard Practice for Filled-Hole Tension and Compression Testing of Polymer Matrix Composite Laminates

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5.1 Refer to Guide D8509.
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1.1 This practice provides instructions for modifying open-hole tension and compression test methods to determine filled-hole tensile and compressive strengths. The composite material forms are limited to continuous-fiber reinforced polymer matrix composites in which the laminate is both symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.  
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5.1 Refer to Guide D8509.
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SIGNIFICANCE AND USE
5.1 Refer to Guide D8509.
SCOPE
1.1 This test method determines the fastener pull-through resistance of multidirectional polymer matrix composites reinforced by high-modulus fibers. Fastener pull-through resistance is characterized by the force-versus-displacement response exhibited when a mechanical fastener is pulled through a composite plate, with the force applied perpendicular to the plane of the plate. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites for which the laminate is symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses is defined in 8.2.  
1.2 Two test procedures and configurations are provided. The first, Procedure A, is suitable for screening and fastener development purposes. The second, Procedure B, is configuration-dependent and is suitable for establishing design values. Both procedures can be used to perform comparative evaluations of candidate fasteners/fastener system designs.  
1.3 The specimens described herein may not be representative of actual joints which may contain one or more free edges adjacent to the fastener, or may contain multiple fasteners that can change the actual boundary conditions.  
1.4 This test method is consistent with the recommendations of CMH-17, which describes the desirable attributes of a fastener pull-through test method.  
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 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.  
1.5.1 Within the text, the inch-pound units are shown in brackets.  
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ASTM D5766/D5766M-23(Test Method)
Standard Test Method for Open-Hole Tensile Strength of Polymer Matrix Composite Laminates

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5.1 Refer to Guide D8509.
SCOPE
1.1 This test method determines the open-hole tensile strength of multidirectional polymer matrix composite laminates reinforced by high-modulus fibers. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites in which the laminate is balanced and symmetric with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.  
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ASTM D6264/D6264M-23(Test Method)
Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer-Matrix Composite to a Concentrated Quasi-Static Indentation Force

SIGNIFICANCE AND USE
5.1 Susceptibility to damage from concentrated out-of-plane forces is one of the major design concerns of many structures made of advanced composite laminates. Knowledge of the damage resistance properties of a laminated composite plate is useful for product development and material selection.  
5.2 QSI testing can serve the following purposes:  
5.2.1 To simulate the force-displacement relationships of impacts governed by boundary conditions (1-7).5 These are typically relatively large-mass low-velocity hard-body impacts on plates with a relatively small unsupported region. Since the test is run slowly in displacement control, the desired damage state can be obtained in a controlled manner. Associating specific damage events with a force during a drop-weight impact test is often difficult due to the oscillations in the force history. In addition, a specific sequence of damage events may be identified during quasi-static loading while the final damage state is only identifiable after a drop-weight impact test.  
5.2.2 To provide an estimate of the impact energy required to obtain a similar damage state for drop-weight impact testing if all others parameters are held constant.  
5.2.3 To establish quantitatively the effects of stacking sequence, fiber surface treatment, variations in fiber volume fraction, and processing and environmental variables on the damage resistance of a particular composite laminate to a concentrated indentation force.  
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5.2.5 To impart damage in a specimen for subsequent damage tolerance tests, such as Test Method D7137/D7137M.  
5.2.6 To measure the indentation response of the specimen with and without bending us...
SCOPE
1.1 This test method determines the damage resistance of multidirectional polymer matrix composite laminated plates subjected to a concentrated indentation force (Fig. 1). Procedures are specified for determining the damage resistance for a test specimen supported over a circular opening and for a rigidly-backed test specimen. The composite material forms are limited to continuous-fiber reinforced polymer matrix composites, with the range of acceptable test laminates and thicknesses defined in 8.2. This test method may prove useful for other types and classes of composite materials.
FIG. 1 Quasi-Static Indentation Test  
1.1.1 Instructions for modifying these procedures to determine damage resistance properties of sandwich constructions are provided in Practice D7766/D7766M.  
1.2 A flat, square composite plate is subjected to an out-of-plane, concentrated force by slowly pressing a hemispherical indenter into the surface. The damage resistance is quantified in terms of a critical contact force to cause a specific size and type of damage in the specimen.  
1.3 The test method may be used to screen materials for damage resistance, or to inflict damage into a specimen for subsequent damage tolerance testing. The indented plate can be subsequently tested in accordance with Test Method D7137/D7137M to measure residual strength properties. Drop-weight impact per Test Method D7136/D7136M may be used as an alternate method of creating damage from an out-of-plane force and measuring damage resistance properties.  
1.4 The damage resistance properties generated by this test method are highly dependent upon several factors, which include specimen geometry, layup, indenter geometry, force, and boundary conditions. Thus, results are generally not scalable to other configurations, and are particular to the combination of geometric and physical conditions tested.  
1.5 Units—The values stated in either SI units or inch-pound u...

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    11 pages
    English language
    sale 15% off