The steady state fracture toughness of elastic visco-plastic materials is studied numerically, using both a conventional and a higher order model. Focus is on the combined effect of strain hardening, strain gradient hardening and strain rate hardening on cracking in layered material systems, and predictions for the crack tip shielding ratio is brought forward. Included is a novel procedure for extracting information on the rate-independent toughness without approaching this numerically cumbersome limit.
|Title of host publication||Proceedings for 23rd International Congress of Theoretical and Applied Mechanics (ICTAM 2012)|
|Number of pages||2|
|Publication status||Published - 2012|
|Event||23rd International Congress of Theoretical and Applied Mechanics - Beijing, China|
Duration: 19 Aug 2012 → 24 Aug 2012
|Conference||23rd International Congress of Theoretical and Applied Mechanics|
|Period||19/08/2012 → 24/08/2012|