ASTM E328 - 13 - Standard Test Methods for Stress Relaxation Tests for Materials and Structures

ASTM E328 - 13

Standard Test Methods for Stress Relaxation Tests for Materials and Structures

Status : Current   Published : January 2013

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Note 1The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D2991.

1.1 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.

1.2 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.

1.3 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.

1.4  Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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.




Standard NumberASTM E328 - 13
TitleStandard Test Methods for Stress Relaxation Tests for Materials and Structures
StatusCurrent
Publication Date11 January 2013
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 Bending relaxation, Bolting, Compression relaxation, Hoop stresses, Riveting, Springs, Stress relaxation, Tension relaxation, Torsion relaxation
ICS77.040.10
PublisherASTM
FormatA4
DeliveryYes
Pages13
File Size0 KB
Price£45.00


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