Zener’s Crack and the M-Integral

[+] Author and Article Information
Z. Suo

Mechanical and Aerospace Engineering, Department and Materials Institute, Princeton University, Princeton, NJ 08544

J. Appl. Mech 67(2), 417-418 (Oct 12, 1999) (2 pages) doi:10.1115/1.1302302 History: Received July 21, 1999; Revised October 12, 1999
Copyright © 2000 by ASME
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Grahic Jump Location
Zener’s model. Dislocations pile up at an obstacle, i.e., the interface between two solids. The intense stress causes a crack to nucleate either on the interface, or in one of the solids.
Grahic Jump Location
A dislocation lies on an interface. An arbitrary curve C encloses the dislocation.
Grahic Jump Location
A superdislocation on the interface, and a crack either on the interface or in one of the solids. The M-integral is evaluated over the two closed curves.




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