Modeling stationary and moving cracks in shells by X-FEM with CB shell elements

• 作 者: ZENG QingLei LIU ZhanLi XU Dan
• 机 构: SchoolofAerospace
• 出 处: 中国科学：技术科学英文版
• 发表日期: 2014年7期
• 关键词: 裂纹扩展模型 壳单元 CB 移动 造型 应力强度因子 水平集方法 有限元法 CB shell element X-FEM level set method cr
• 基金项目: supported by the National Natural Science Foundation of China（Grant No.11372157）

The continuum-based(CB)shell theory is combined with the extended finite element method(X-FEM)in this paper to model crack propagation in shells under static and dynamic situations.Both jump function and asymptotic crack tip solution are adopted for descr