Thermal Shock Crack Propagation of Alumina Simulated With the Phase-Field Method Under Temperature-Dependent Damage Criteria

YANG Guoxin; ZHENG Shifeng; LI Dingyu; LI Weiguo

doi:10.21656/1000-0887.430133

Volume 43 Issue 11

Nov. 2022

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Article Navigation > Applied Mathematics and Mechanics > 2022 > 43(11): 1259-1267

YANG Guoxin, ZHENG Shifeng, LI Dingyu, LI Weiguo. Thermal Shock Crack Propagation of Alumina Simulated With the Phase-Field Method Under Temperature-Dependent Damage Criteria[J]. Applied Mathematics and Mechanics, 2022, 43(11): 1259-1267. doi: 10.21656/1000-0887.430133

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Thermal Shock Crack Propagation of Alumina Simulated With the Phase-Field Method Under Temperature-Dependent Damage Criteria

doi: 10.21656/1000-0887.430133

1.
College of Aerospace Engineering, Chongqing University, Chongqing 400044, P.R.China
2.
School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, P.R.China

Received Date: 2022-04-13
Rev Recd Date: 2022-04-20

Available Online: 2022-09-27

Publish Date: 2022-11-30

Abstract

Abstract

The mechanical properties of alumina ceramic materials are significantly affected by temperature, so it is necessary to consider the temperature dependence of the damage criteria during the simulation of thermal shock crack propagation with the phase-field method. Based on the existing thermodynamic phase-field model, the governing equations for the phase-field model were modified through introduction of the temperature-dependent damage criterion. Then the revised phase-field model was used to simulate the thermal shock experiment of alumina ceramics, and the simulation results were compared with the experimental results and the finite element simulation results without temperature-dependent damage criteria. The results show that, introduction of the temperature-dependent damage criterion helps more reasonably simulate the initiation and propagation process of thermal shock crack.
- alumina ceramic,
- thermal shock,
- phase-field method,
- finite element simulation

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References(16)

References

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