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ASTM E 328 : 2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Test Methods for Stress Relaxation Tests for Materials and Structures

Available format(s)

Hardcopy , PDF

Superseded date

05-02-2021

Superseded by

ASTM E 328 : 2020

Language(s)

English

Published date

12-05-2014

€74.48
Excluding VAT

Note 1—The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D2991.

Committee
E 28
DocumentType
Test Method
Pages
15
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

Note 1The method of testing for the stress relaxation of plastics has been withdrawn from this standard, and the responsibility has been transferred to Practice D2991.

1.1These 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.

1.2Specific 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.

1.3It 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.

1.4Units—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.

1.5This 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.

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ASTM F 2789 : 2010 : R2020 Standard Guide for Mechanical and Functional Characterization of Nucleus Devices
ASTM D 6048 : 2007 : R2018 Standard Practice for Stress Relaxation Testing of Raw Rubber, Unvulcanized Rubber Compounds, and Thermoplastic Elastomers
ASTM A 911/A911M : 2015 Standard Specification for Low-Relaxation Steel Bars for Prestressed Concrete Railroad Ties
ASTM A 421/A421M : 2015 Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

ASTM E 1012 : 2014 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
ASTM E 1012 : 1999 Standard Practice for Verification of Specimen Alignment Under Tensile Loading
ASTM E 1012 : 2012 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
ASTM E 1012 : 2014 : EDT 1 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
ASTM D 2991 : 1984 Recommended Practice for Testing Stress-Relaxation of Plastics (Withdrawn 1990)
ASTM E 1012 : 2012 : EDT 1 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
ASTM E 1012 : 2005 Standard Practice for Verification of Test Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
ASTM E 1012 : 2019 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application

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