Conservation Laws and Energy-Release Rates

[+] Author and Article Information
B. Budiansky

Division of Engineering and Applied Physics, Harvard University, Cambridge, Mass.

J. R. Rice

Division of Engineering, Brown University, Providence, R. I.

J. Appl. Mech 40(1), 201-203 (Mar 01, 1973) (3 pages) doi:10.1115/1.3422926 History: Received November 01, 1971; Revised January 12, 1972; Online July 12, 2010


New path-independent integrals recently discovered by Knowles and Sternberg are related to energy-release rates associated with cavity or crack rotation and expansion. Complex-variable forms are presented for the conservation laws in the cases of linear, isotropic, plane elasticity. A special point concerning plastic stress distributions around cracks is discussed briefly.

Copyright © 1973 by ASME
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