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ASTM-D7137:2005 Edition

ASTM-D7137:2005 Edition

$44.96

D7137/D7137M-05e1 Standard Test Method for Compressive Residual Strength Properties of Damaged Polymer Matrix Composite Plates

Published By Publication Date Number of Pages
ASTM 2005 18
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1.1 This test method covers compression residual strength properties of multidirectional polymer matrix composite laminated plates, which have been subjected to quasi-static indentation per Test Method D 6264 or drop-weight impact per Test Method D 7136/D 7136M prior to application of compressive force. The composite material forms are limited to continuous-fiber reinforced polymer matrix composites with multidirectional fiber orientations, and which are both symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses is defined in 8.2.

Note 1When used to determine the residual strength of drop-weight impacted plates, this test method is commonly referred to as the Compression After Impact, or CAI, method.

1.2 The method utilizes a flat, rectangular composite plate, previously subjected to a damaging event, which is tested under compressive loading using a stabilization fixture.

Note 2The damage tolerance properties obtained are particular to the type, geometry and location of damage inflicted upon the plate.

1.3 The properties generated by this test method are highly dependent upon several factors, which include specimen geometry, layup, damage type, damage size, damage location, and boundary conditions. Thus, results are generally not scalable to other configurations, and are particular to the combination of geometric and physical conditions tested.

1.4 This test method can be used to test undamaged polymer matrix composite plates, but historically such tests have demonstrated a relatively high incidence of undesirable failure modes (such as end crushing). Test Method D 6641/D 6641M is recommended for obtaining compressive properties of undamaged polymer matrix composites.

1.5 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.

1.6 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Summary of Test Method
3 FIG. 1
FIG. 2
4 FIG. 3
FIG. 4
5 Significance and Use
Interferences
FIG. 5
6 FIG. 6
7 Apparatus
FIG. 7
8 FIG. 8
9 FIG. 9
10 Sampling and Test Specimens
FIG. 10
11 FIG. 11
12 Calibration
Conditioning
Procedure
FIG. 12
13 FIG. 13
14 FIG. 14
FIG. 15
15 TABLE 1
TABLE 2
16 TABLE 3
17 Validation
Calculation
Report
18 Precision and Bias
Keywords

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