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REVIEW ARTICLES: Failure Modes in Dynamic Fracture

Transition in the Failure Behavior of Dynamically Shear Loaded Cracks

[+] Author and Article Information
J. F. Kalthoff

Experimentelle Mechanik, Ruhr-Universität Bochum, 4630 Bochum, FRG

Appl. Mech. Rev 43(5S), S247-S250 (May 01, 1990) doi:10.1115/1.3120818 History: Online April 30, 2009

Abstract

An experimental technique is presented for subjecting cracks to high rates of shear (mode-II) loading. By means of the shadow optical method of caustics, the dynamic crack tip loading conditions are investigated for both the phase of loading and the subsequent phase of failure. A failure mode transition is observed when the loading rate exceeds a certain limit. At low rates failure is controlled by fracture processes. At high rates, failure is controlled by the formation of adiabatic shear bands, a process not considered by fracture mechanics so far.

Copyright © 1990 by American Society of Mechanical Engineers
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