Steady State Crack Propagation in Layered Material Systems Displaying Visco-plastic Behaviour

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Abstract

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.
Original languageEnglish
Title of host publicationProceedings for 23rd International Congress of Theoretical and Applied Mechanics (ICTAM 2012)
Number of pages2
Publication date2012
Publication statusPublished - 2012
Event23rd International Congress of Theoretical and Applied Mechanics - Beijing, China
Duration: 19 Aug 201224 Aug 2012

Conference

Conference23rd International Congress of Theoretical and Applied Mechanics
CountryChina
CityBeijing
Period19/08/201224/08/2012

Bibliographical note

Proceeding for 23rd International Congress of Theoretical and Applied Mechanics (ICTAM2012), 19-24 August, 2012, Beijing, China.

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