对称热流载荷下一维六方准晶体币状裂纹的热-弹性解析解OACHSSCDCSTPCD
Steady-state Thermo-elastic Field in An Infinite 1D Hexagonal Quasi-crystal Medium Containing A Penny-shaped Crack under Symmetric Heat Flux
针对一维六方准晶无限体中币状裂纹问题,给出了裂纹面作用对称热流载荷时的解析解.在准晶热-弹性通解的基础上,采用广义势理论方法,得到了准晶体中稳态的三维精确热-弹性场.同时,给出了裂纹所在平面上多个重要物理量的封闭解,其中包括裂纹面位移、法向应力、应力强度因子等.通过数值算例,验证了当前解析解的正确性,并分析了三维热-弹性场的分布情况.通过对声子场和相位子场耦合与解耦前后的对比,可知相位子场对结果的影响非常显著.所得解析解可作为针对准晶体断裂问题数…查看全部>>
This paper develops an analytical solution for the problem of an infinite 1D hexagonal quasi-crystal medium weakened by a penny-shaped crack and symmetrically subjected to a pair of heat flux on the upper and lower crack surfaces.Based on the general solution,the steady-state 3D thermo-elastic field in the quasi-crystal is obtained by the generalized potential theory method.Several important physical quantities on the cracked plane,such as crack surface disp…查看全部>>
李泓钊;李佩栋
四川大学 建筑与环境学院,四川 成都 610065四川大学 建筑与环境学院,四川 成都 610065
力学
一维六方准晶币状裂纹热流载荷解析解势理论方法
1D hexagonal quasi-crystalpenny-shaped crackheat fluxanalytical solutionpotential theory method
《宁夏大学学报（自然科学版）》 2024 (2)
112-123,12
国家自然科学基金资助项目(12172237,11802189)四川省科技计划项目(2024NSFSC0432)
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