Displacement and Strain Fields for a Bimetallic Strip Under Remote Tension

[+] Author and Article Information
J. S. Epstein, K. E. Perry, W. G. Reuter

Fracture Behavior Group, The Idaho National Engineering Laboratory, P. O. Box 1625, Idaho Falls, ID 83415-2218

S. M. Graham

Materials Engineering Associates, 9700B M. L. King Jr. Highway, Lanham, MD 20706-1837

J. Appl. Mech 62(4), 997-1004 (Dec 01, 1995) (8 pages) doi:10.1115/1.2896035 History: Received January 05, 1993; Revised May 16, 1994; Online October 30, 2007


Experimental displacement and strain fields are presented for a generalized plane stress tensile specimen consisting of commercially pure titanium diffusion bonded to 6Al-4V titanium. Plastic flow initiates at the intersection of the interface with the specimen free edge. Further deformation results in concentrated shear bands emanating from the interface at both free edges. Interactions of the interface-free edge shear bands force a state of plane strain in the center of the specimen. These interface constraint effects have practical relevance on the testing of joined metals with property mismatch.

Copyright © 1995 by The American Society of Mechanical Engineers
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