立方准晶材料中的运动螺型位错

基金项目: 国家自然科学基金资助项目(10372016)

Moving Screw Dislocation in Cubic Quasicrystal

College of Mechanical & Electrical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China;

摘要: 发展了立方准晶的位错弹性理论．通过引入位移势函数，使得立方准晶的反平面弹性动力学问题归结为求解两个波动方程，得到了运动螺型位错的位移场、应力场与能量的解析表达式及运动位错的速度极限．这些为研究此固体材料的塑性变形的物理机理提供了重要的信息．
- 立方准晶 /
- 螺型位错 /
- 弹性场 /
- 反平面弹性问题
Abstract: The elasticity theory of the dislocation of cubic quasicrystals is developed.The governing equations of anti-plane elasticity dynamics problem of the quasicrystals were reduced to a solution of wave equations by introducing displacement functions,and the analytical expressions of displacements,stresses and energies induced by a moving screw dislocation in the cubic quasicrystalline and the velocity limit of the dislocation were obtained.These provide important information for studying the plastic deformation of the new solid material.
- cubic quasicrystal /
- screw dislocation /
- elasticity field /
- anti-plane elasticity problem

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