ASTM-D3479/D3479M 2023

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D3479/D3479M-19(2023) Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials

Published By	Publication Date	Number of Pages
ASTM	2023	6

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Categories: 83.140.20 - Laminated sheets, ASTM

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Description

ASTM D3479/D3479M-19-Reapproved2023

Active Standard: Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials

ASTM D3479/D3479M

Scope

1.1 This test method determines the fatigue behavior of polymer matrix composite materials subjected to tensile cyclic loading. The composite material forms are limited to continuous-fiber or discontinuous-fiber reinforced composites for which the elastic properties are specially orthotropic with respect to the test direction. This test method is limited to unnotched test specimens subjected to constant amplitude uniaxial in-plane loading where the loading is defined in terms of a test control parameter.

1.2 This test method presents two procedures where each defines a different test control parameter.

1.2.1 Procedure A—A system in which the test control parameter is the load (stress) and the machine is controlled so that the test specimen is subjected to repetitive constant amplitude load cycles. In this procedure, the test control parameter may be described using either engineering stress or applied load as a constant amplitude fatigue variable.

1.2.2 Procedure B—A system in which the test control parameter is the strain in the loading direction and the machine is controlled so that the test specimen is subjected to repetitive constant amplitude strain cycles. In this procedure, the test control parameter may be described using engineering strain in the loading direction as a constant amplitude fatigue variable.

1.3 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.

1.3.1 Within the text the inch-pound units are shown in brackets.

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.

Keywords

composite materials; fatigue; polymer matrix composites; properties ;

ICS Code

ICS Number Code 83.140.20 (Laminated sheets)

DOI: 10.1520/D3479_D3479M-19R23

Additional information

Standard Title	D3479/D3479M-19(2023) Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials
Published Code	ASTM
Publication Date	2023
Pages Count	6
ICS Codes	83.140.20 - Laminated sheets