Crack Propagation as a Free Boundary Problem

Autor:	Efim A. Brener, Robert Spatschek, Denis Pilipenko
Rok vydání:	2007
Předmět:	Physics Steady state (electronics) Field (physics) Mechanical Engineering Phase (waves) Pattern formation Fracture mechanics Mechanics Radius Instability Classical mechanics Mechanics of Materials Free boundary problem General Materials Science
Zdroj:	Key Engineering Materials. :429-432
ISSN:	1662-9795
DOI:	10.4028/www.scientific.net/kem.345-346.429
Popis:	We present a continuum theory which predicts the steady state propagation of cracks. The theory overcomes the usual problem of a finite time cusp singularity of the Grinfeld instability by the inclusion of elastodynamic effects which restore selection of the steady state tip radius and velocity. We developed a sharp interface method and a phase field approach to investigate the model. The simulations confirm analytical predictions for fast crack propagation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc8f33e7b94f1a53096229048030aaef https://doi.org/10.4028/www.scientific.net/kem.345-346.429 Zobrazit plný text záznamu