THEORETICAL AND APPLIED MECHANICS

 

   TEORIJSKA I PRIMENJENA MEHANIKA  2002

Vol.28-29, pp.205-220

 

 

 

Summary: 

V. K. Kalpakides    E. K. Agiasofitou

   
 

 

Configurational balance laws for dynamical fracture

 

 

In the spirit of modern continuum mechanics, global balance laws for momentum, angular momentum, energy and pseudomomentum are formulated for an elastic body in the presence of a moving crack. Upon localization, the corresponding balance equations in the bulk and at the crack tip are simultaneously obtained. The proposed framework is convenient for the derivation of the well-known formula, which relates the crack propagation velocity, the global material force and the energy release rate.