Transient Magneto-Thermoelastic Response for a Semi-Infinite Body with Voids and Variable Material Properties during Thermal Shock
Transient Magneto-Thermoelastic Response for a Semi-Infinite Body with Voids and Variable Material Properties during Thermal Shock
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DOI：
10.1142/s1758825111001287
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发表时间：
2011-12
影响因子：
3.5
通讯作者：
Q. Xiong;X. Tian
中科院分区：
文献类型：
--
作者：
Q. Xiong;X. Tian
在这项工作中的磁热弹性问题的半无限体的空隙和温度依赖性的材料性能放置在横向磁场中的广义热弹性的不同理论的背景下进行了研究。物体的上表面受到纬向随时间变化的热冲击。通过求解问题的有限元控制方程得到了问题的解。计算结果包括温度、应力、位移、体积分数场、感应磁场和感应电场的变化。在不同的广义热弹性理论和三种形式的温度相关的材料特性（绝对温度相关，参考温度相关，温度无关）下得到的结果进行比较。最后用图解法给出了热弹性理论中的空穴效应。
In this work the magneto-thermoelastic problem of a semi-infinite body with voids and temperature-dependent material properties placed in a transverse magnetic field is investigated in the context of different theories of generalized thermoelasticity. The upper surface of the body is subjected to a zonal time-dependent heat shock. The solution is obtained by solving finite element governing equations of the problem. The results, including temperature, stresses, displacements, the change in volume fraction field, induced magnetic field and induced electric field are presented graphically. Comparisons are made in the results obtained under different theories of generalized thermoelasticity and three forms of temperature-dependent material properties (absolute temperature-dependent, reference temperature-dependent, and temperature-independent). Finally the voids effects in the theory of thermoelasticity are presented graphically.