ASTM B769-94(2000)

Standard Test Method for Shear Testing of Aluminum Alloys

SCOPE
1.1 This test method covers double-shear testing of wrought and cast aluminum products to determine shear ultimate strengths.Note 1--The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.2 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-Dec-1999
• ICS: 77.150.10 - Aluminium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.05 - Testing

Relations

• Replaced By: ASTM B769-06 - Standard Test Method for Shear Testing of Aluminum Alloys
• Effective Date: 01-Sep-2006
• Referred By: ASTM F3607-22 - Standard Specification for Additive Manufacturing – Finished Part Properties – Maraging Steel via Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM F3056-14(2021) - Standard Specification for Additive Manufacturing Nickel Alloy (UNS N06625) with Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM F3001-14(2021) - Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium ELI (Extra Low Interstitial) with Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM F3184-16 - Standard Specification for Additive Manufacturing Stainless Steel Alloy (UNS S31603) with Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM F3055-14a(2021) - Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM E238-17a - Standard Test Method for Pin-Type Bearing Test of Metallic Materials
• Effective Date: 01-Jan-2000
• Referred By: ASTM F2924-14(2021) - Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium with Powder Bed Fusion
• Effective Date: 01-Jan-2000
• Referred By: ASTM F3122-14(2022) - Standard Guide for Evaluating Mechanical Properties of Metal Materials Made via Additive Manufacturing Processes
• Effective Date: 01-Jan-2000
• 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-Jan-2000
• Referred By: ASTM B831-22 - Standard Test Method for Shear Testing of Thin Aluminum Alloy Products
• Effective Date: 01-Jan-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:B769–94 (Reapproved 2000)
Standard Test Method for
Shear Testing of Aluminum Alloys
This standard is issued under the fixed designation B769; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * 5. Significance and Use
1.1 Thistestmethodcoversdouble-sheartestingofwrought 5.1 The intent of this method is to provide a means of
and cast aluminum products to determine shear ultimate measuring the ultimate shear strength of aluminum-alloy
strengths. wrought and cast products. Data obtained by this method are
usedtocalculateminimumpropertiesthatcanbeutilizedinthe
NOTE 1—Thevaluesstatedininch-poundunitsaretoberegardedasthe
design of structural members such as found in aircraft. It is
standard. The values given in parentheses are provided for information
recognized that loading conditions developed by this method,
only.
and by most others, are not ideal in that they do not strictly
1.2 This standard does not purport to address all of the
satisfy the definition of pure shear. However, rarely do pure
safety concerns, if any, associated with its use. It is the
shear conditions exist in structures.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- NOTE 2—ThismethodisnotinterchangeablewiththatdescribedinTest
Method B565. Shear strengths obtained by Test Method B565 are about
bility of regulatory limitations prior to use.
10% lower than those developed by this test method.
2. Referenced Documents
5.2 The presence of a lubricant on the surface of the
2.1 The following documents of the issue in effect on the specimen and jig may result in shear strengths up to 3% lower
dateofmaterialpurchase,unlessotherwisenotedformapartof
thanthosedeterminedintheabsenceoflubrication(see8.1and
this specification to the extent referenced herein: Test Method B565).
2.2 ASTM Standards:
6. Apparatus
B565 Test Method for Shear Testing of Aluminum and
Aluminum-Alloy Rivets and Cold-Heading Wire and 6.1 Testing Machines—The testing machines shall conform
Rods to the requirements of Practices E4. The loads used to
E4 Practices for Force Verification of Testing Machines determine the shear strength shall be within the loading range
E6 Terminology Relating to Methods of Mechanical Test- of the testing machine as defined in Practices E4.
ing 6.2 Loading Device:
6.2.1 The loading device shall be a double-shear test jig of
3. Terminology
the type shown in Fig. 1. The jig shall be made of hardened
3.1 The definitions of terms relating to shear testing in steel having a hardness from 60 to 62 Rockwell hardness, C
Terminology E6 are applicable to the terms used in this test
scale (HRC). A suitable alternative is to use a lower-strength
method. steel for the main frame of the jig and have only the steel
inserts hardened from 60 to 62 HRC.
4. Summary of Test Method
6.2.2 The shearing edges of the holes shall have a radius of
4.1 This test method consists of subjecting a machined
no more than 0.0005 in. (0.013 mm). The mating surfaces of
cylindrical test specimen to double-shear loading in a test jig
the center and outside dies shall have a finish of 16 µin.AAor
using a tension (or compression) testing machine to determine
better. There shall be sufficient clearances between the die
the shear stress required to fracture the specimen, that is, the
interfaces to ensure that no binding occurs; clearance should
shear strength.
not exceed 0.002 in. (0.051 mm). Consequently, the rigidity of
the test jig must be such that this clearance is maintained
throughout the test; in instances where the device is loaded in
This test method is under the jurisdiction of ASTM Committee B07 on Light
compression as in Fig. 1, care must be taken to ensure there is
Metals and Alloys and is the direct responsibility of Subcommittee B07.05 on
Testing. no binding between the dies at the interfaces during the test.
Current edition approved Feb. 15, 1994. Published April 1994. Originally
6.2.3 The nominal length of the center and outside dies of
published as B769–87. Last previous edition B769–87.
the tool shown in Fig. 1 is 1 in. (25.4 mm). It has been
Annual Book of ASTM Standards, Vol 02.02.
demonstrated that die lengths of 0.5 in. (12.7 mm) for ⁄8-in.
Annual Book of ASTM Standards, Vol 03.01.
*A Summary of Changes section appears at the end of this standard.
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B769
FIG. 1 Three Views of an Amsler Shear Tool
(9.52 mm) diameter specimens give test results comparable to 7.5 The finish shall be 32 µin. AA or better.
dies1in.inlength. Theinitialminimumlengthofanyonedie
shall be 0.5 in. (12.7 mm) for specimens up through 0.375 in.
8. Specimen Orientation and Direction
(9.52 mm) in diameter. The minimum die lengths for speci-
8.1 The shear strength of an aluminum material usually
mensgreaterthan0.375in.indiametershouldbekeptinabout
dependsonthespecimenorientationandthedirectioninwhich
thesameproportionasthatofthe0.375-in.diameterspecimen; 4
the load is applied relative to the grain flow in the specimen.
that is, die length/specimen diameter equal to ⁄3.As a result of
The specimen orientation and the loading directi
...