循环荷载-温度下脆性材料裂纹扩展相场计算方法及设备
By employing a thermo-mechanical-phase-field coupled calculation method, the problem of crack propagation in brittle materials under cyclic loading and temperature was solved, achieving efficient and accurate crack propagation simulation, which is applicable to the stability analysis of underground caverns for compressed air energy storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are difficult to effectively simulate the crack propagation process of brittle materials under cyclic loading and temperature, and the experimental process is time-consuming and costly. The commonly used phase-field method has few applications for research on complex mechanical behaviors.
A thermo-mechanical-phase-field coupled calculation method is adopted. By embedding fatigue degradation function and temperature field related parameters in finite element simulation software, a thermo-mechanical-phase-field coupled model is established and iteratively solved to simulate the crack initiation and propagation process.
This method enables efficient, reliable, and accurate simulation of crack propagation in brittle materials under cyclic loading and temperature, improving the accuracy and efficiency of numerical simulation.
Smart Images
Figure CN122224384B_ABST