Details
| Original language | English |
|---|---|
| Journal | World Congress in Computational Mechanics and ECCOMAS Congress |
| Volume | 2100 |
| Publication status | Published - 2021 |
| Event | 14th World Congress of Computational Mechanics and ECCOMAS Congress, WCCM-ECCOMAS 2020 - Virtual, Online Duration: 11 Jan 2021 → 15 Jan 2021 |
Abstract
We consider a monolithic phase-field description for fractures in nearly incompressible materials, i.e., carbon black filled ethylene propylene diene monomer rubber (EPDM). A quasi-static phase-field fracture problem is formulated in mixed form based on three different energy functionals (AT2, AT1 and Wu’s model) combined with two different stress splitting approaches (according to Miehe and Amor). It leads to six different phase-field fracture formulations in mixed form. The coupled variational inequality systems are solved in a quasi-monolithic manner with the help of a primal-dual active set method handling the inequality constraint. Further, adaptive mesh refinement is used to get a sharper crack zone. Numerical results based on the six different problem setups are validated on crack propagation experiments of punctured EPDM strips with five different test configurations. As a quantity of interest, the crack paths of experiments and numerical computations are discussed.
Keywords
- Crack Propagation, EPDM Rubber, Mixed Finite Elements, Phase-field Modeling
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
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In: World Congress in Computational Mechanics and ECCOMAS Congress, Vol. 2100, 2021.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Numerical Studies of Different Mixed Phase-Field Fracture Models for Simulating Crack Propagation in Punctured EPDM Strips
AU - Mang, Katrin
AU - Wick, Thomas
N1 - Funding Information: The authors would like to thank Nils Hendrik Kröger and Andreas Fehse for conducting experiments at the DIK. Further, the work has been supported by the DFG, SPP 1748 (392587580, WI 4367/2-1).
PY - 2021
Y1 - 2021
N2 - We consider a monolithic phase-field description for fractures in nearly incompressible materials, i.e., carbon black filled ethylene propylene diene monomer rubber (EPDM). A quasi-static phase-field fracture problem is formulated in mixed form based on three different energy functionals (AT2, AT1 and Wu’s model) combined with two different stress splitting approaches (according to Miehe and Amor). It leads to six different phase-field fracture formulations in mixed form. The coupled variational inequality systems are solved in a quasi-monolithic manner with the help of a primal-dual active set method handling the inequality constraint. Further, adaptive mesh refinement is used to get a sharper crack zone. Numerical results based on the six different problem setups are validated on crack propagation experiments of punctured EPDM strips with five different test configurations. As a quantity of interest, the crack paths of experiments and numerical computations are discussed.
AB - We consider a monolithic phase-field description for fractures in nearly incompressible materials, i.e., carbon black filled ethylene propylene diene monomer rubber (EPDM). A quasi-static phase-field fracture problem is formulated in mixed form based on three different energy functionals (AT2, AT1 and Wu’s model) combined with two different stress splitting approaches (according to Miehe and Amor). It leads to six different phase-field fracture formulations in mixed form. The coupled variational inequality systems are solved in a quasi-monolithic manner with the help of a primal-dual active set method handling the inequality constraint. Further, adaptive mesh refinement is used to get a sharper crack zone. Numerical results based on the six different problem setups are validated on crack propagation experiments of punctured EPDM strips with five different test configurations. As a quantity of interest, the crack paths of experiments and numerical computations are discussed.
KW - Crack Propagation
KW - EPDM Rubber
KW - Mixed Finite Elements
KW - Phase-field Modeling
UR - http://www.scopus.com/inward/record.url?scp=85122144958&partnerID=8YFLogxK
U2 - 10.23967/wccm-eccomas.2020.145
DO - 10.23967/wccm-eccomas.2020.145
M3 - Conference article
AN - SCOPUS:85122144958
VL - 2100
JO - World Congress in Computational Mechanics and ECCOMAS Congress
JF - World Congress in Computational Mechanics and ECCOMAS Congress
T2 - 14th World Congress of Computational Mechanics and ECCOMAS Congress, WCCM-ECCOMAS 2020
Y2 - 11 January 2021 through 15 January 2021
ER -