研究含蜂窝芯层的压电复合材料层合板的表面局部分层热屈曲,建立压电蜂窝层板模型,应用能量原理,计算在层板子层发生局部分层情况下,热屈曲的临界温度变化值.比较不同情况下屈曲临界温差的变化,分析不同因素对发生热屈曲时临界温度变化的影响.由计算结果可得,不同分层形状以及铺层角度对临界温度变换都会产生影响,其中以椭圆形分层具有最好的稳定性.同时临界温度变化也会随附加电场强度线性变化,在工程应用中可利用施加电场来有效防止压电层板局部分层发生屈曲.
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