Simulating brittle fracture with a robust hybrid explicit–implicit solver for staggered phase‐field problems
Citation Link: https://doi.org/10.15480/882.14195
Publikationstyp
Conference Paper
Date Issued
2024-03
Sprache
English
Author(s)
TORE-DOI
Volume
25
Issue
1
Article Number
e202400042
Citation
94th Annual Meeting of the International Association of Applied Mathematics and Mechanics, GAMM 2024
Contribution to Conference
Publisher DOI
Publisher
Wiley
In this work, the robustness of phase‐field fracture simulations is increased by introducing a new hybrid approach to take advantages of both explicit and implicit solvers. Switching to an explicit solver at critical load cases enables us to define a threshold on the maximum number of staggered iterations per load step. Having this threshold would be very useful in complicated FCM problems since we cannot wait for a full convergence of the implicit solver at critical load steps. With the new hybrid method, the problem is implicit as long as the implicit solver can converge within a specified threshold; otherwise, the failed load step will be solved robustly using an explicit approach. The method can resolve the highly nonlinear part of the global load–displacement curve. The superiority of the approach is shown in different benchmark examples.
DDC Class
600: Technology
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Name
Proc Appl Math and Mech - 2025 - Hosseini - Simulating Brittle Fracture With a Robust Hybrid Explicit Implicit Solver for.pdf
Type
Main Article
Size
1.46 MB
Format
Adobe PDF