ASTM B831-14
(Test Method)Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: B831 − 14
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* 4. Summary of Test Method
1.1 This test method covers single shear testing of thin 4.1 This test method consists of subjecting a full thickness
wrought and cast aluminum alloy products to determine shear or machined rectangular test specimen to single shear force to
ultimate strengths. It is intended for products that are too thin failure in a test fixture using a tension testing machine. The
to be tested according to Test Method B769. shear strength is calculated from the maximum force required
to fracture the specimen.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
5. Significance and Use
conversions to SI units that are provided for information only
and are not considered standard. 5.1 The intent of this test method is to provide a means of
measuring the ultimate shear strength of thin aluminum alloy
1.3 This standard does not purport to address all of the
wrought and cast products. It is recognized that the loading
safety concerns, if any, associated with its use. It is the
conditions developed by this test method, and by most others,
responsibility of the user of this standard to establish appro-
are not ideal in that they do not strictly satisfy the definitions
priate safety and health practices and determine the applica-
of pure shear. However, rarely do pure shear conditions exist in
bility of regulatory limitations prior to use.
structures.
2. Referenced Documents
NOTE 1—Results from this test method are not interchangeable with
results from Test Methods B565 and B769. Shear strengths obtained by
2.1 The following documents of the issue in effect on the
this test method have been shown to differ from values determined with
date of material purchase, unless otherwise noted, form a part
3
other methods.
of this specification to the extent referenced herein:
2
2.2 ASTM Standards: 6. Apparatus
B565 Test Method for Shear Testing of Aluminum and
6.1 Testing Machines—The testing machines shall conform
Aluminum-Alloy Rivets and Cold-Heading Wire and
totherequirementsofPracticeE4.Themaximumforceusedto
Rods
determine the shear strength shall be within the verified force
B769 Test Method for Shear Testing of Aluminum Alloys
range of the testing machine as defined in Practice E4.
E4 Practices for Force Verification of Testing Machines
6.2 Loading Device:
E6 Terminology Relating to Methods of Mechanical Testing
6.2.1 The device for applying force to the specimen from
E2208 Guide for Evaluating Non-Contacting Optical Strain
the testing machine shall be a clevis of the type shown in Fig.
Measurement Systems
1 and shall be made of a hardened steel.
3. Terminology
7. Test Specimens
3.1 Definitions—The definitions of terms relating to shear
7.1 The specimen size shall be 1.5 in. (38.1 mm) wide by
testing in Terminology E6 are applicable to the terms used in
4.5in.(114mm)long.ThespecimengeometryisshowninFig.
this test method.
2. The specimen thickness shall be the full product thickness
for a product thickness of 0.250 in. (6.35 mm) or less. For a
1
This test method is under the jurisdiction of ASTM Committee B07 on Light
product thickness greater than 0.250 in. (6.35 mm), the
Metals and Alloys and is the direct responsibility of Subcommittee B07.05 on
specimen shall be machined to a thickness of 0.250 in. (6.35
Testing.
mm) by machining equal amounts from each side of the
CurrenteditionapprovedMay1,2014.PublishedJuly2014.Originallyapproved
in 1993. Last previous edition approved in 2011 as B831 – 11. DOI: 10.1520/
B0831-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. 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 − 14
8. Specimen Orientation and Direction
8.1 The shear strength of wrought aluminum materials
usually depends on the specimen orientation and the direction
in which the load
...
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 − 11 B831 − 14
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 SI values given in parentheses are mathematical
conversions to SI units that are provided for information only.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 and health practices and determine the applicability of regulatory
limitations prior to use.
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 Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E2208 Guide for Evaluating Non-Contacting Optical Strain Measurement Systems
3. Terminology
3.1 Definitions—The definitions of terms relating to shear testing in Terminology E6 are applicable to the terms used in this test
method.
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 the testing machine as defined in Practice E4.
1
This test method is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloyss and is the direct responsibility of Subcommittee B07.05 on Testing.
Current edition approved Nov. 1, 2011May 1, 2014. Published January 2012July 2014. Originally approved in 1993. Last previous edition approved in 20052011 as
B831 – 05.B831 – 11. DOI: 10.1520/B0831-11.10.1520/B0831-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Davies, R. E., and Kaufman, J. G., “Effects of Test Method and Specimen Orientation on Shear Strengths of Aluminum Alloys,” Proceedings, ASTM, Vol 64, 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 − 14
6.2 Loading Device:
6.2.1 The device for applying force to the specimen from the testing machine shall be a clevis of the type shown in Fig. 1 and
shall be made of a hardened steel.
7. Test Specimens
7.1 The specimen size shall be 1.5 in. (38.1 mm) wide by 4.5 in. (114 mm) long. The specimen geometry is shown in Fig. 2.
The specimen thickness shall be the full product thickness for a product thickne
...
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