ASTM B831-22

Standard Test Method for Shear Testing of Thin Aluminum Alloy Products

SIGNIFICANCE AND USE
5.1 The intent of this test method is to provide a means of measuring the ultimate shear strength of thin aluminum alloy wrought and cast products. It is recognized that the loading conditions developed by this test method, and by most others, are not ideal in that they do not strictly satisfy the definitions of pure shear. However, rarely do pure shear conditions exist in structures.
Note 1: Results from this test method are not interchangeable with results from Test Methods B565 and B769. Shear strengths obtained by this test method have been shown to differ from values determined with other methods.3
SCOPE
1.1 This test method covers single shear testing of thin wrought and cast aluminum alloy products to determine shear ultimate strengths. It is intended for products that are too thin to be tested according to Test Method B769.  
1.2 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.  
1.3 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.  
1.4 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.

General Information

• Status: Published
• Publication Date: 30-Sep-2022
• ICS: 77.040.10 - Mechanical testing of metals
• ICS: 77.150.10 - Aluminium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.05 - Testing

Standards Content (Sample)

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.
Designation: B831 − 22
Standard Test Method for
1
Shear Testing of Thin Aluminum Alloy Products
This standard is issued under the fixed designation B831; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods
1.1 This test method covers single shear testing of thin
E691 Practice for Conducting an Interlaboratory Study to
wrought and cast aluminum alloy products to determine shear
Determine the Precision of a Test Method
ultimate strengths. It is intended for products that are too thin
E2208 Guide for Evaluating Non-Contacting Optical Strain
to be tested according to Test Method B769.
Measurement Systems
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3. Terminology
conversions to SI units that are provided for information only
3.1 Definitions—The definitions of terms relating to me-
and are not considered standard.
chanical testing in Terminology E6 are applicable to the terms
1.3 This standard does not purport to address all of the
used in this test method.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety, health, and environmental practices and deter-
4.1 This test method consists of subjecting a full thickness
mine the applicability of regulatory limitations prior to use.
or machined rectangular test specimen to single shear force to
1.4 This international standard was developed in accor-
failure in a test fixture using a tension testing machine. The
dance with internationally recognized principles on standard-
shear strength is calculated from the maximum force required
ization established in the Decision on Principles for the
to fracture the specimen.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5. Significance and Use
Barriers to Trade (TBT) Committee.
5.1 The intent of this test method is to provide a means of
2. Referenced Documents
measuring the ultimate shear strength of thin aluminum alloy
wrought and cast products. It is recognized that the loading
2.1 The following documents of the issue in effect on the
conditions developed by this test method, and by most others,
date of material purchase, unless otherwise noted, form a part
are not ideal in that they do not strictly satisfy the definitions
of this specification to the extent referenced herein:
ofpureshear.However,rarelydopureshearconditionsexistin
2
2.2 ASTM Standards:
structures.
B565 Test Method for Shear Testing of Aluminum and
NOTE 1—Results from this test method are not interchangeable with
Aluminum-Alloy Rivets and Cold-Heading Wire and
results from Test Methods B565 and B769. Shear strengths obtained by
Rods
this test method have been shown to differ from values determined with
B769 Test Method for Shear Testing of Aluminum Alloys
3
other methods.
E4 Practices for Force Calibration and Verification of Test-
ing Machines
6. Apparatus
E6 Terminology Relating to Methods of Mechanical Testing
6.1 Testing Machines—The testing machines shall conform
totherequirementsofPracticeE4.Themaximumforceusedto
1
determine the shear strength shall be within the verified range
This test method is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.05 on
of forces of the testing machine as defined in Practice E4.
Testing.
6.2 Loading Device:
Current edition approved Oct. 1, 2022. Published January 2023. Originally
approved in 1993. Last previous edition approved in 2019 as B831 – 19. DOI:
10.1520/B0831-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Davies, R. E., and Kaufman, J. G., “Effects of Test Method and Specimen
Standards volume information, refer to the standard’s Document Summary page on Orientation on Shear Strengths ofAluminumAlloys,” Proceedings,ASTM, Vol 64,
the ASTM website. 1964.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B831 − 22
6.2.1 The device for applying force to the spe
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B831 − 19 B831 − 22
Standard Test Method for
1
Shear Testing of Thin Aluminum Alloy Products
This standard is issued under the fixed designation B831; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method covers single shear testing of thin wrought and cast aluminum alloy products to determine shear ultimate
strengths. It is intended for products that are too thin to be tested according to Test Method B769.
1.2 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.
1.3 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.
1.4 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of material purchase, unless otherwise noted, form a part of this
specification to the extent referenced herein:
2
2.2 ASTM Standards:
B565 Test Method for Shear Testing of Aluminum and Aluminum-Alloy Rivets and Cold-Heading Wire and Rods
B769 Test Method for Shear Testing of Aluminum Alloys
E4 Practices for Force Calibration and Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E2208 Guide for Evaluating Non-Contacting Optical Strain Measurement Systems
3. Terminology
3.1 Definitions—The definitions of terms relating to shearmechanical testing in Terminology E6 are applicable to the terms used
in this test method.
1
This test method is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.05 on Testing.
Current edition approved May 1, 2019Oct. 1, 2022. Published July 2019January 2023. Originally approved in 1993. Last previous edition approved in 20142019 as
B831 – 14.B831 – 19. DOI: 10.1520/B0831-19.10.1520/B0831-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B831 − 22
4. Summary of Test Method
4.1 This test method consists of subjecting a full thickness or machined rectangular test specimen to single shear force to failure
in a test fixture using a tension testing machine. The shear strength is calculated from the maximum force required to fracture the
specimen.
5. Significance and Use
5.1 The intent of this test method is to provide a means of measuring the ultimate shear strength of thin aluminum alloy wrought
and cast products. It is recognized that the loading conditions developed by this test method, and by most others, are not ideal in
that they do not strictly satisfy the definitions of pure shear. However, rarely do pure shear conditions exist in structures.
NOTE 1—Results from this test method are not interchangeable with results from Test Methods B565 and B769. Shear strengths obtained by this test
3
method have been shown to differ from values determined with other methods.
6. Apparatus
6.1 Testing Machines—The testing machines shall conform to the requirements of Practice E4. The maximum force used to
determine the shear strength shall be within the verified force range of forces of the testing machine as defined in Practice E4.
6.2 Loading Device:
6.
...