Numerical modeling based on moving mesh method to simulate fast crack propagation
作者: Francesco FabbrocinoMarco Francesco FunariFabrizio GrecoPaolo LonettiRaimondo Luciano
作者单位: 1Pagaso University
2University of Calabria
3Partenope University
刊名: Frattura ed Integrità Strutturale, 2020, Vol.14 (51), pp.410-422
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.51.30
关键词: Moving mesh methodFracture MechanicsCrack propagationFast crack growth
原始语种摘要: An analysis to show the capability of moving mesh strategy to predict dynamic crack growth phenomena in 2D continuum media is proposed. The numerical method is implemented in the framework of the finite element method, which is coupled with moving mesh strategy to simulate the geometry variation produced by the crack tip motion. In particular, a computational procedure based on the combination of Fracture Mechanics concepts and Arbitrary Lagrangian-Eulerian approach (ALE) is developed. This represents a generalization of previous authors’ works in a dynamic framework to propose a unified approach for predicting crack propagation in both static and dynamic frameworks. The crack speed is explicitly evaluated at each time step by using a proper crack tip speed criterion, which can be...
全文获取路径: Gruppo Italiano Frattura 

  • moving 移动
  • simulate 模拟
  • propagation 传播
  • crack 裂隙
  • modeling 制祝型
  • computational 计算的
  • growth 生长
  • framework 构架
  • capability 能力
  • method 方法