| 层合材料的非傅里叶热传导及热应力 |
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| 引用本文： | 李金娥,王保林,常冬梅.层合材料的非傅里叶热传导及热应力[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 李金娥 王保林 常冬梅 |
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| 作者单位： | 哈尔滨工业大学深圳研究生院; |
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| 基金项目： | 国家自然科学基金项目(10972067,11172081)资助 |
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| 摘 要： | 论文建立了一个双层材料层合板受瞬态加热情况下的非傅里叶热传导分析模型,用向后差分法得到了温度场的数值解,并对该差分格式的稳定性进行了讨论.给出了温度场随导热时间、热扩散率、空间与时间步长之比以及弛豫时间的变化趋势.同时,通过已经求得的温度场,求得了层合板内的应力场,给出了层合板内的热应力随时间的变化.
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| 关 键 词： | 非傅里叶热传导 温度场 热应力 |
NON-FOURIER HEAT CONDUCTION AND THERMAL STRESS OF LAYERED MATERIALS |
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| Jine Li Baolin Wang Dongmei Chang.NON-FOURIER HEAT CONDUCTION AND THERMAL STRESS OF LAYERED MATERIALS[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Jine Li Baolin Wang Dongmei Chang |
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| Institution: | Jine Li Baolin Wang Dongmei Chang(Graduate School at Shenzhen,Harbin Institute of Technology,Shenzhen,150001) |
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| Abstract: | This paper establishes an analytical model for the Non-Fourier heat conduction of a layered material plate subjected to thermal shock on its surfaces.Numerical solutions are obtained by using the backward difference method.The stability of the proposed method is discussed.Variation of temperature field with time,thermal diffusivity,the ratio of space step size to time step size,and relaxation time are discussed in details.In addition,the thermal stress field associated with the calculated temperature field ... |
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| Keywords: | non-Fourier heat conduction temperature field thermal stresses |
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