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增强型Reddy层合梁理论与热应力分析

, PP. 246-250

Keywords: 增强型Reddy理论,热膨胀,夹层梁,热应力,热应变

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Abstract:

为推广Reddy理论准确分析复合材料层合/夹层结构的热变形和应力,通过使用横法向热变形和自由表面条件,发展了增强型Reddy层合梁理论。虽然考虑了横法向应变,增强型Reddy理论位移变量数与Reddy理论相同。用虚功原理推导了复合材料层合梁平衡方程,并分析了简支复合材料层合/夹层梁热膨胀问题。数值结果表明,增强型Reddy理论能准确分析复合材料层合/夹层结构热膨胀问题,而Reddy理论分析热膨胀问题误差较大。

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