Embedded crack vs. smeared crack models: a comparison of elementwise discontinuous crack path approaches with emphasis on mesh bias
作者: J. MoslerG. Meschke
作者单位: 1Institute of Mechanics, Ruhr University Bochum, Universitätsstr. 150, 44780 Bochum, Germany
2Institute for Structural Mechanics, Ruhr University Bochum, Universitätsstr. 150, 44780 Bochum, Germany
刊名: Computer Methods in Applied Mechanics and Engineering, 2003, Vol.193 (30), pp.3351-3375
来源数据库: Elsevier Journal
DOI: 10.1016/j.cma.2003.09.022
关键词: 172852596580Finite element methodStrain softeningCrackingMesh biasDisplacement discontinuities
原始语种摘要: Abstract(#br)This paper is concerned with an analysis of the mesh dependence of results from numerical failure analyses using the strong discontinuity approach (SDA) based on an analytical and numerical comparison with a standard plasticity model, pertaining to the classical fracture energy based smeared crack concept using a consistent characteristic length. The SDA is characterized by incorporating the kinematics of fractured solids locally within the finite element. The resulting jumps in the displacement field are captured by their corresponding singularly distributed strains. For the analytical and numerical study of the mesh dependence only mode-I failure is considered. Analogies and differences of both finite element formulations are investigated and evaluated.
全文获取路径: Elsevier  (合作)
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