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ASTM E328

Standard Test Methods for Stress Relaxation for Materials and Structures

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Organization: ASTM
Publication Date: 10 November 2002
Status: inactive
Page Count: 13
ICS Code (Test conditions and procedures in general): 19.020
scope:

NOTE 1 - The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D 2991.

These test methods cover the determination of the time dependence of stress (stress relaxation) in materials and structures under conditions of approximately constant constraint, constant environment, and negligible vibration. In the procedures recommended, the material or structure is initially constrained by externally applied forces, and the change in the external force necessary to maintain this constraint is determined as a function of time.

Specific methods for conducting stress relaxation tests on materials subjected to tension, compression, bending and torsion stresses are described in Parts A, B, C, and D, respectively. These test methods also include recommendations for the necessary testing equipment and for the analysis of the test data.

It is recognized that the long time periods required for these types of tests are often unsuited for routine testing or for specification in the purchase of material. However, these tests are valuable tools in obtaining practical design information on the stress relaxation of materials subjected to the conditions enumerated, and in investigations of the fundamental behavior of materials.

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.

Document History

November 1, 2013
Standard Test Methods for Stress Relaxation for Materials and Structures
NOTE 1-The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D2991. These test methods cover the...
November 10, 2002
Standard Test Methods for Stress Relaxation for Materials and Structures
NOTE 1—The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D 2991. These test methods cover the...
ASTM E328
November 10, 2002
Standard Test Methods for Stress Relaxation for Materials and Structures
NOTE 1 - The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D 2991. These test methods cover...
February 28, 1986
Standard Test Method for Stress Relaxation for Materials and Structures
These test methods cover the determination of the time dependence of stress (stress relaxation) in materials and structures under conditions of approximately constant constraint, constant...
January 1, 1986
Standard Test Method for Stress Relaxation for Materials and Structures
1. Scope NOTE 1--The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D 2991. 1.1 These test...
March 31, 1978
STANDARD RECOMMENDED PRACTICES FOR STRESS- RELAXATION TESTS FOR MATERIALS AND STRUCTURES
A description is not available for this item.
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