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ASTM B 871 Document Information:
Title
Standard Test Method for Tear Testing of Aluminum Alloy Products
ASTM International
Publication Date:
Oct 10, 2001
Scope:
This test method covers the static tear test of aluminum alloy
products using specimens that are 0.040 in. (1 mm) to 0.250 in.
(6.35 mm) thick.
This test method is applicable to aluminum alloy products having
a minimum thickness of 0.040 in. (1 mm).
This test method provides a measure of both notch toughness and
resistance to crack propagation with the primary use as a screening
or merit rank test.
The reliability of the tear test has been established in various
research programs by reasonably good correlations between data from
the tear tests and fracture toughness tests.2,3
NOTE 1—Direct measurement of fracture toughness may be made in
accordance with Practices B 645, B 646 and Test Method E 399.
The values stated in inch-pound units are to be regarded as the
standard. The values given in parentheses are for information
only.
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 Kaufman, J. G., and Holt, Marshall, "Fracture
Characteristics of Aluminum Alloys," Alcoa Research Laboratories
Technical Paper No. 18.
3 Kaufman, J. G., and Knoll, A. H., "Kahn-Type Tear
Tests and Crack Toughness of Aluminum Sheet," Metals Research and
Standards, April 1964, pp. 151–155.
Keywords:
- aluminum alloys
- product form
- tear strength
- tear strength/yield strength ratio
- tear test
- unit propagation energy
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