Reference : Accelerating fatigue simulations of a phase-field damage model for rubber
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Computational Sciences
http://hdl.handle.net/10993/44084
Accelerating fatigue simulations of a phase-field damage model for rubber
English
Loew, Pascal Juergen mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > >]
Poh, Leong Hien mailto []
Peters, Bernhard mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Beex, Lars mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
1-Oct-2020
Computer Methods in Applied Mechanics and Engineering
Elsevier
370
113247
Yes (verified by ORBilu)
International
0045-7825
1879-2138
Amsterdam
Netherlands
[en] Phase-field damage models are able to describe crack nucleation as well as crack propagation and coalescence without additional technicalities, because cracks are treated in a continuous, spatially finite manner. Previously, we have developed a phase-field model to capture the rate-dependent failure of rubber, and we have further enhanced it to describe failure due to cyclic loading. Although the model accurately describes fatigue failure, the associated cyclic simulations are slow. Therefore, this contribution presents an acceleration scheme for cyclic simulations of our previously introduced phase-field damage model so that the simulation speed is increased to facilitate large-scale simulations of industrially relevant problems. We formulate an explicit and an implicit cycle jump method, which, depending on the selected jump size, reduce the calculation time up to 99.5%. To circumvent the manual tuning of the jump size, we also present an adaptive jump size selection procedure. Thanks to the implicit adaptive scheme, all material parameters are identified from experiments, which include fatigue crack nucleation and crack growth. Finally, the model and its parameters are validated with additional measurements of the fatigue crack growth rate.
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/44084
10.1016/j.cma.2020.113247
https://doi.org/10.1016/j.cma.2020.113247

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