在平板不同位置开孔的剪切稳定性分析及应力集中影响

The Influence on the Shear Stability and Stress Concentration of Flat Plane with Different Hole Position

为满足管线通过、减重、维修等需求,通常需要在结构上开孔。基于Patran和Nastran软件,针对剪切载荷下的四边简支开孔矩形平板,对其在不同开孔位置下的稳定性及口边应力集中情况进行仿真分析,并整理仿真分析结果,得到不同开孔位置对矩形平板剪切稳定性和口边应力集中的影响,供结构开孔设计使用。

To satisfy the need of pipeline passing through, weight reduction, maintenance etc.,we usually have to add holes to the structure. Based on Patran and Nastran, this article makes an analysis on the shear stability and holeedge stress concentration of four-edge simplified rectangular flat plane with different hole po-sition under shear load. The analysis result shows that the different hole position made different influence on the shear stability and hole-edge stress concentration of rectangular flat panel,which could be used for structural hole design.