VCCM法による2次元き裂エネルギー解放率計算におけるFEMモデルの影響に関する研究

概要

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キーワード : Finite Element Method (FEM) Stress Intensity Factor VCCM Energy Release Rate Center Cracked Plate　抄録 : An efficient technique for evaluating energy-release rates has been proposed. In numerical analysis of the fracture mechanics parameter, a finite element method (FEM) and its related technique to calculate the fracture parameter are applied to a practical problem. A virtual crack closure method (VCCM) is an efficient method for the calculation of an energy release rate at a crack tip, and it is applied to calculate the energy release rate of two- and three-dimensional problems. If VCCM is used, the energy-release rate can be obtained easily from the nodal displacements and the equivalent nodal forces at the crack tip neighborhood. However, it has been considered that the computational accuracy relatively depend on the finite element meshes. Therefore, the parametric studies with regard to the finite element meshes are performed and the results are discussed.
鶴岡工業高等専門学校の論文
2005-12-20