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ASTM B831-05

(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
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. Data obtained by this test method are used to calculate minimum properties that can be utilized in the design of structural members such as found in aircraft. 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—This test method is not interchangeable with that described in Methods B 565 and B 769. Shear strengths obtained by this test method have been shown to vary from those developed by the 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.
1.2 The values stated in inch-pound units are to be regarded as standard. The SI values given in parentheses are provided for information only.
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.

General Information

Status
Historical
Publication Date
31-Mar-2005
ICS
77.040.10 - Mechanical testing of metals
77.150.10 - Aluminium products
Technical Committee
B07 - Light Metals and Alloys
Drafting Committee
B07.05 - Testing
Current Stage
Ref Project

Relations

Replaces
ASTM B831-93(1998) - Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
Effective Date
01-Apr-2005
Replaced By
ASTM B831-11 - Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
Effective Date
01-Nov-2011
Referred By
ASTM B565-20 - Standard Test Method for Shear Testing of Aluminum and Aluminum-Alloy Rivets and Cold-Heading Wire and Rods
Effective Date
01-Apr-2005
Referred By
ASTM E238-17a - Standard Test Method for Pin-Type Bearing Test of Metallic Materials
Effective Date
01-Apr-2005

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ASTM B831-05 - Standard Test Method for Shear Testing of Thin Aluminum Alloy ProductsASTM B831-05 - Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
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ASTM B831-05 - Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B831–05
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* 5. Significance and Use
1.1 This test method covers single shear testing of thin 5.1 The intent of this test method is to provide a means of
wrought and cast aluminum alloy products to determine shear measuring the ultimate shear strength of thin aluminum alloy
ultimate strengths. wrought and cast products. Data obtained by this test method
1.2 The values stated in inch-pound units are to be regarded areusedtocalculateminimumpropertiesthatcanbeutilizedin
as standard. The SI values given in parentheses are provided the design of structural members such as found in aircraft. It is
for information only. recognized that the loading conditions developed by this test
1.3 This standard does not purport to address all of the method, and by most others, are not ideal in that they do not
safety concerns, if any, associated with its use. It is the strictly satisfy the definitions of pure shear. However, rarely do
responsibility of the user of this standard to establish appro- pure shear conditions exist in structures.
priate safety and health practices and determine the applica-
NOTE 1—This test method is not interchangeable with that described in
bility of regulatory limitations prior to use.
Methods B565 and B769. Shear strengths obtained by this test method
3
have been shown to vary from those developed by the other methods.
2. Referenced Documents
6. Apparatus
2.1 The following documents of the issue in effect on the
date of material purchase, unless otherwise noted, form a part
6.1 Testing Machines—The testing machines shall conform
of this specification to the extent referenced herein:
totherequirementsofPracticeE4.Themaximumforceusedto
2
2.2 ASTM Standards:
determine the shear strength shall be within the verified force
B565 Test Method for Shear Testing of Aluminum and
range of the testing machine as defined in Practice E4.
Aluminum-Alloy Rivets and Cold-HeadingWire and Rods
6.2 Loading Device:
B769 Test Method for Shear Testing of Aluminum Alloys
6.2.1 The device for applying force to the specimen from
E4 Practices for Force Verification of Testing Machines
the testing machine shall be a clevis of the type shown in Fig.
E6 TerminologyRelatingtoMethodsofMechanicalTesting
1 and shall be made of a hardened steel.
3. Terminology
7. Test Specimens
1
3.1 Definitions—The definitions of terms relating to shear
7.1 The specimen size shall be 1 ⁄2 in. (38.1 mm) wide by
1
testing in Terminology E6 are applicable to the terms used in
4 ⁄2 in. (114 mm) long. The specimen geometry is shown in
this test method.
Fig. 2. The specimen thickness shall be the full product
thicknessforaproductthicknessof0.250in.(6.35mm)orless.
4. Summary of Test Method
For a product thickness greater then 0.250 in. (6.35 mm), the
4.1 This test method consists of subjecting a full thickness
specimen shall be machined to a thickness of 0.250 in. (6.35
or machined rectangular test specimen to single shear force to
mm) by machining equal amounts from each side of the
failure in a test fixture using a tension testing machine. The
product. . The minimum specimen thickness that can be
shear strength is calculated from the maximum force required
reasonably tested will be dictated by the material’s ability to
to fracture the specimen.
resist buckling around the pin hole area during testing.
7.2 The test area to be sheared shall be centered within
0.001 in. (0.025 mm) of the load line of the specimen.
1
This test method is under the jurisdiction of ASTM Committee B07 on Light
7.3 Measurement of the thickness and length of the area to
Metals and Alloy s and is the direct responsibility of Subcommittee B07.05 on
Testing.
be sheared shall be made as follows:
Current edition approved April 1, 2005. Published April 2005. Originally
approved in 1993. Last previous edition approved in 1998 as B831 – 93 (1998).
DOI: 10.1520/B0831-05.
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
...

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