scholarly journals Simulation of Crack Propagation under Small-Scale Yielding by means of a Non-local GTN-Model

PAMM ◽  
2011 ◽  
Vol 11 (1) ◽  
pp. 157-158
Author(s):  
Geralf Hütter ◽  
Thomas Linse ◽  
Uwe Mühlich ◽  
Meinhard Kuna
Keyword(s):  
Crack Propagation ◽  
Small Scale ◽  
Small Scale Yielding ◽  
Gtn Model ◽  
Scale Yielding ◽  
Non Local

Small Scale Contact Conditions for the Linear-Elastic Interface Crack

1988 ◽  
Vol 55 (4) ◽  
pp. 814-817 ◽  
Author(s):  
Peter M. Anderson
Keyword(s):  
Interface Crack ◽  
Growth Parameter ◽  
Small Scale ◽  
Elastic Materials ◽  
Small Scale Yielding ◽  
Contact Conditions ◽  
Linear Elastic ◽  
Elastic Interface ◽  
Scale Yielding ◽  
Anisotropic Elastic

Conditions are discussed for which the contact zone at the tip of a two-dimensional interface crack between anisotropic elastic materials is small. For such “small scale contact” conditions combined with small scale yielding conditions, a stress concentration vector uniquely characterizes the near tip field, and may be used as a crack growth parameter. Representative calculations for an interface crack on a representative Cu grain boundary show small contact conditions to prevail, except possibly under large shearing loads.

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