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  4. Simulating brittle fracture with a robust hybrid explicit–implicit solver for staggered phase‐field problems
 
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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)
Hosseini, Seyed Farhad  
Konstruktion und Festigkeit von Schiffen M-10  
Gorji, Mahan  
Konstruktion und Festigkeit von Schiffen M-10  
Sartorti, Roman  orcid-logo
Konstruktion und Festigkeit von Schiffen M-10  
Radtke, Lars  
Konstruktion und Festigkeit von Schiffen M-10  
Düster, Alexander  
Konstruktion und Festigkeit von Schiffen M-10  
TORE-DOI
10.15480/882.14195
TORE-URI
https://tore.tuhh.de/handle/11420/52835
Journal
Proceedings in applied mathematics and mechanics  
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
94th Annual Meeting of the International Association of Applied Mathematics and Mechanics, GAMM 2024  
Publisher DOI
10.1002/pamm.202400042
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
Funding(s)
Numerische Modellierung teilzementierter Böden im Stagnationsbereich  
Projekt DEAL  
Funding Organisations
Deutsche Forschungsgemeinschaft (DFG)  
Lizenz
https://creativecommons.org/licenses/by-nc/4.0/
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