| 有裂纹无限大平板非稳定热应力解析数值解 |
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| 引用本文： | 王素琴.有裂纹无限大平板非稳定热应力解析数值解[J].福州大学学报(自然科学版),1994(4):10-14. |
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| 作者姓名： | 王素琴 |
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| 作者单位： | 大连水产学院港口工程系 |
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| 摘 要： | 讨论有微观裂纹的平板在急冷时所产生的热冲击问题。分析了有裂纹平板的瞬间热应力，并确定裂纹尖端的应力强度因子。无因次的最大应力强度因子用比奥数及无因次裂纹长度来表示，提出了３者之间的确定的简化公式。
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| 关 键 词： | 热应力 应力强度因子 热冲击 平板 尖裂纹 非稳定状态 |
An Analysis of the Unsteady-State Thermal Stress of a Flat Plate with a Crack |
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| Wang Suqin.An Analysis of the Unsteady-State Thermal Stress of a Flat Plate with a Crack[J].Journal of Fuzhou University(Natural Science Edition),1994(4):10-14. |
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| Authors: | Wang Suqin |
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| Institution: | Wang Suqin(Department of Port Engineering, Dalian Fisheries College, Dalian, Liaoning, 116023) |
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| Abstract: | This paper deals with the thermal shock problem of a flat plate with an edge crack, initially at uniform temperature, and suddenly cooled on the plate surface. In the paper, the transient thermal stress problem of a flat plate with a crack is analyzed and the stress intensity factor at the crack tip is determined. The nondimensional maximum transient stress intensity factor is expressed as a function of Biot's number and the nondimensional crack length. Then a simplified formula concerned is proposed. |
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| Keywords: | thermal stress stress intensity factor thermal shock flat plate edge crack unsteady-state |
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