Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 320, Issue -, Pages 396-420Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2017.03.039
Keywords
Phase field; XFEM; Brittle fracture; Crack propagation
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The present work proposes a novel method for the simulation of crack propagation in brittle elastic materials that combines two of the most popular approaches in literature. A large scale displacement solution is obtained with the well known extended finite elements method (XFEM), while propagation is governed by the solution of a local phase field problem at the tip scale. The method, which we will refer to as Xfield, is here introduced and tested in 2D under mixed modes I and II loads. The main features and the capability of the Xfield to efficiently simulate crack propagation are shown in some numerical benchmarks. (C) 2017 Elsevier B.V. All rights reserved.
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