ASTM D6115 - 97(2019) - Standard Test Method for Mode I Fatigue Delamination Growth Onset of Unidirectional Fiber-Reinforced Polymer Matrix Composites

ASTM D6115 - 97(2019)

Standard Test Method for Mode I Fatigue Delamination Growth Onset of Unidirectional Fiber-Reinforced Polymer Matrix Composites

Status : Current   Published : March 2019

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1.1 This test method determines the number of cycles ( N) for the onset of delamination growth based on the opening mode I cyclic strain energy release rate ( G), using the Double Cantilever Beam (DCB) specimen shown in Fig. 1. This test method applies to constant amplitude, tension-tension fatigue loading of continuous fiber-reinforced composite materials. When this test method is applied to multiple specimens at various G-levels, the results may be shown as a G–N curve, as illustrated in Fig. 2.

FIG. 1  DCB Specimen with Piano Hinges

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FIG. 2 G–NCurve

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1.2 This test method is limited to use with composites consisting of unidirectional carbon fiber tape laminates with single-phase polymer matrices. This limited scope reflects the experience gained in round robin testing. This test method may prove useful for other types and classes of composite materials, however, certain interferences have been noted (see Section 6.5 of Test Method D5528).

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3.1  Exception—The values provided in parentheses are for information only.

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.




Standard NumberASTM D6115 - 97(2019)
TitleStandard Test Method for Mode I Fatigue Delamination Growth Onset of Unidirectional Fiber-Reinforced Polymer Matrix Composites
StatusCurrent
Publication Date15 March 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors composite materials, delamination, double cantilever beam, frequency, maximum cyclic strain energy release rate, mode I, onset of fatigue delamination growth
ICS83.120
PublisherASTM
FormatA4
DeliveryYes
Pages7
File Size177 KB
Price£40.00


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