...扰动；形貌演变[gap=943]lar microcracks; surface diffusion; finite element method; surface perturbation; shape evolutions...
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Based on the theory of surface diffusion, a finite element method was developed to simulate shape evolutions of two-dimensional microcracks with surface perturbation.
根据表面扩散控制下物质迁移规律，建立有限单元法，对裂面形貌扰动下二维微裂纹演变过程进行数值模拟。
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