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ASTM-D6641:2009 Edition

ASTM-D6641:2009 Edition

$44.96

D6641/D6641M-09 Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture

Published By Publication Date Number of Pages
ASTM 2009 11
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ASTM D6641/D6641M-09

Historical Standard: Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture

ASTM D6641/D6641M

Scope

1.1 This test method determines the compressive strength and stiffness properties of polymer matrix composite materials using a combined loading compression (CLC) (1) test fixture. This test method is applicable to general composites that are balanced and symmetric. The specimen may be untabbed (Procedure A) or tabbed (Procedure B), as required. One requirement for a successful test is that the specimen ends do not crush during the test. Untabbed specimens are usually suitable for use with materials of low orthotropy, for example, fabrics, chopped fiber composites, and laminates with a maximum of 50 % 0Ā° plies, or equivalent (see 6.4). Materials of higher orthotropy, including unidirectional composites, typically require tabs.

1.2 The compressive force is introduced into the specimen by combined end- and shear-loading. In comparison, Test Method D 3410/D 3410M is a pure shear-loading compression test method and Test Method D 695 is a pure end-loading test method.

1.3 Unidirectional (0Ā° ply orientation) composites as well as multi-directional composite laminates, fabric composites, chopped fiber composites, and similar materials can be tested.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the test 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.

Note 1ā€”Additional procedures for determining the compressive properties of polymer matrix composites may be found in Test Methods D 3410/D 3410M, D 5467, and D 695.

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 and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

combined loading; composite materials; compressive modulus of elasticity; compressive properties; compressive strength; Poisson’s ratio; CLC (combined loading compression) device; Composites; Compression testing–composites; Polymer matrix composite materials

ICS Code

ICS Number Code 83.140.10 (Films and sheets)

DOI: 10.1520/D6641_D6641M-09

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Summary of Test Method
Significance and Use
FIG. 1
3 Interferences
FIG. 2
4 Apparatus and Supplies
FIG. 3
5 Sampling and Test Specimens
6 Calibration
Conditioning
Procedure
7 Validation
8 Calculation
9 Report
FIG. 4
10 Precision and Bias
Keywords
REFERENCES

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