The State of the Art in Computational Dynamic Fracture Mechanics
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概要
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The state of the art in computational mechanics of dynamic fracture is reviewed. The concept of dynamic fracture mechanics is essentially based on asymptotic behaviors of a dynamically propagating crack and of a stationary crack subjected to dynamic loading. First, the asymptotic solutions of near-tip field of an elastodynamically propagating crack under steady-state conditions and under transient conditions are summarized. Next, the features of the dynamic J integral pertaining to nonlinear dynamic fracture mechanics as well as to elastodynamic fracture mechanics are described. The dynamic J integral may play important roles in both theoretical and computational aspects of dynamic fracture mechanics. Special attention is focused on various computational models of dynamic crack propagation, which are used in the finite difference method, finite-element method and boundary-element method. Various techniques to overcome inherent difficulties in the discretization of fast-moving surface problems associated with crack-tip singularities are thoroughly reviewed and summarized.
- 一般社団法人日本機械学会の論文
- 1994-10-15
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関連論文
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- The Dynamic J Integral, Separated Dynamic J Integrals and Moving Finite Element Simulations, for Subsonic, Transonic and Supersonic Interfacial Crack Propagation
- Moving Finite Element Method Aided by Computerized Symbolic Manipulation and Its Application to Dynamic Fracture Simulation
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- An Incremental Variational Principle Minimizing Experimental Measurement Errors and Its Application to an Intelligent Hybrid Experimental-Numerical Method : Case of Nonlinear Elastic-Plastic Deformation Field
- Measurements of Near-Tip Displacement Fields, Separated J Integrals and Separated Energy Release Rates for Interfacial Cracks Using Phase-Shifting Moire Interferometry