Abstract
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.
Original language | English |
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Pages (from-to) | 396-420 |
Number of pages | 25 |
Journal | Computer Methods in Applied Mechanics and Engineering |
Volume | 320 |
DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
Keywords
- Brittle fracture
- Crack propagation
- Phase field
- XFEM