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夹层圆板和夹层扁球壳非线性弯曲的进一步研究

, PP. 1072-1077

Keywords: 夹层圆板,夹层扁球壳,大挠度,非线性稳定,配点法,抛物线法

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Abstract:

以幂函数为试函数,用配点法计算了夹层圆板和夹层扁球壳的非线性弯曲.夹层板壳采用较精确的刘人怀模型(考虑表板弯曲刚度),求得了夹层圆板的挠度、内力,首次求出了夹层扁球壳的上、下临界荷载.所得的结果同reissner模型(不考虑表板弯曲刚度)的结果做了比较.提出并使用了效率较高的抛物线法计算临界荷载.

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