Journal Published Online: 01 March 1991
Volume 19, Issue 2

Plastic η and γ Factors for Compact Tension Specimen in -Integral Estimation

CODEN: JTEVAB

Abstract

The empirical expressions for the plastic η and γ factors adopted by ASTM in the standard test methods for Jlc and J-R curve testing (E 813 and E 1152) were determined from the results of experimental work. This note proposes instead expressions of ηp and γp that are derived from a limit load solution. The results show that over the range of crack lengths recommended for testing in the ASTM standard test methods, a/W = 0.5 to 0.75, the proposed ηp value is 5.11 to 1.42% greater than the ASTM value, and the proposed γp value is 12.93 to 5.82% greater.

Author Information

Hu, JM
University of Maryland, College Park, MD
Albrecht, P
University of Maryland, College Park, MD
Pages: 3
Price: $25.00
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Stock #: JTE12549J
ISSN: 0090-3973
DOI: 10.1520/JTE12549J