周动力
无网格法
固体力学
扩散单元法
机械
材料科学
连续介质力学
计算机科学
结构工程
物理
有限元法
复合材料
工程类
扩展有限元法
有限元极限分析
作者
Stewart A. Silling,Ehsan Askari
标识
DOI:10.1016/j.compstruc.2004.11.026
摘要
An alternative theory of solid mechanics, known as the peridynamic theory, formulates problems in terms of integral equations rather than partial differential equations. This theory assumes that particles in a continuum interact with each other across a finite distance, as in molecular dynamics. Damage is incorporated in the theory at the level of these two-particle interactions, so localization and fracture occur as a natural outgrowth of the equation of motion and constitutive models. A numerical method for solving dynamic problems within the peridynamic theory is described. Accuracy and numerical stability are discussed. Examples illustrate the properties of the method for modeling brittle dynamic crack growth.
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