The Dynamic J Integral, Separated Dynamic J Integrals and Moving Finite Element Simulations, for Subsonic, Transonic and Supersonic Interfacial Crack Propagation
スポンサーリンク
概要
- 論文の詳細を見る
First, the concepts of separated dynamic J integral and separated energy release rate were presented for dynamic interfacial fracture mechanics. The separated dynamic J integral has the physical meaning of the energy flow rate to a propagating interfacial crack tip from each material component. Next, a moving finite element method for dynamic interfacial fracture analysis was developed to make it possible to analyze transonic and supersonic interfacial crack propagation. The moving finite element simulations revealed the shock waves(Mach waves)emanated from transonically and supersonically propagating crack tips. The dynamic J integral and the separated dynamic J integrals showed excellent path independence for all crack-velocity regimes even for supersonic interfacial crack propagation. It was found that, in the subsonic crack-velocity-regimes, the compliant material supplies larger fracture energy than the stiff material does. From the energy flow rate to the propagating interfacial crack tip, the theoretical limit of interfacial crack velocity without macrocontact zone was found to be the shear wave velocity of the compliant material.
- 一般社団法人日本機械学会の論文
- 1999-01-15
著者
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Yasin Anwer
Department Of Ocean Mechanical Engineering Kobe University Of Mercantile Marine
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Nishioka Toshihisa
Department of Ocean Electro-Mechanical Engineering, Kobe University of Mercantile Marine
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Nishioka Toshihisa
Department Of Ocean Electro-mechanical Engineering Kobe University Of Mercantile Marine
関連論文
- Theory of Mixed-Mode Caustics for Stationary Cracks in Optically Anisotropic Materials
- A Theory of Caustics for Mixed-Mode Fast-Running Cracks : Higher-Order Theory
- 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
- The State of the Art in Computational Dynamic Fracture Mechanics
- An Alternating Method for Analysis of a Group of Interacting Multiple Elliptical Cracks in an Infinite Solid : Solid-Mechanics, Strength of Materials
- Study on Kinking Fracture from Interfacial Cracks and the Separated J Integrals(Fracture Mechanics)
- Experimental and Numerical Studies on Crack Kinking Phenomena in Bimaterial Specimen(Crack Growth)
- Higher Order Asymptotic Solution for an Interfacial Crack in Piezoelectric Bimaterial under Impact
- 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