研究了有孔钢板和有孔碳纤维/环氧层合板在冲击荷载作用下的结构声强特性.讨论了不同叠层顺序的正交异性碳纤维/环氧层合板的结构声强向量场和流线特性.应用有限元法计算了碳纤维/环氧层合板在冲击荷载作用下各单元的力和速度,再应用MATLAB软件自编程序得出此复合材料层合板的结构声强,再运用Tecplot软件绘制结构声强的向量图和流线图.算例表明,有孔钢板,有孔各向异性碳纤维/环氧层合板的瞬态结构声强向量图及流线图与无孔钢板,无孔各向异性碳纤维/环氧层合板的存在不同的特性;研究发现,不论是钢板,还是正交异性碳纤维/环氧层合板,孔的存在改变了能量流传播途径、结构声强向量分布及应力大小;最大应力位置并不对应最大结构声强位置.
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