Adiabatic equation for cracks

Author: Marder Michael  

Publisher: Taylor & Francis Ltd

ISSN: 1463-6417

Source: Philosophical Magazine B, Vol.78, Iss.2, 1998-08, pp. : 203-214

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Abstract

This article describes dynamical equations for cracks in strips. After first finding the stress and strain fields around a crack moving at constant velocity, the equations are then extended to cracks which accelerate very slowly. Assuming that the motion of cracks is restricted to a line, these calculations show them to be stable, unless the fracture energy that they require to advance is a decreasing function of their velocity.