椭圆形封头开孔孔边应力集中分析

ANALYSIS OF STRESS CONCENTRATION ON THE EDGE OF OPENING HOLE OF ELLIPSE—SHARP SEAL HEAD

椭圆形封头在内压力作用下壳体上的应力是非均匀分布的,所以在开孔后其孔边的应力分布情况比较复杂。按平板开小孔的情形对椭圆形封头开孔后孔边的应力集中状况进行分析,提出了在椭圆形封头上开孔的范围。

The stress is maldistribution on the shell of ellipse-sharp seal head under the func- tion of internal pressure,therefore,after holes opened on the shell,the situation of its edge stress distribution is very complicated.According to condition of the plate,the stress concentration on the edge of opening hole is analyzed,and the range of opening hole on ellipse-sharp seal head is put forward in this article.