Abstract
In this study, a new adaptive method for crack propagation analysis is developed by using the material point method coupled with a phase-field fracture model for brittle materials. A background grid of material particles is adaptively refined based on the amount of material damage to resolve the length scale in the phase-field evolution equation. A division process of the material particles associated with the refined background cells is also performed to increase the resolution of solutions near the crack tip. The effectiveness and validity of the proposed method is assessed through several numerical examples for crack propagation in brittle materials.
Original language | English |
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Pages (from-to) | 987-1010 |
Number of pages | 24 |
Journal | International Journal for Numerical Methods in Engineering |
Volume | 120 |
Issue number | 8 |
DOIs | |
State | Published - 23 Nov 2019 |
Keywords
- adaptive analysis
- crack propagation
- material damage
- material point method
- phase-field model