压力容器表面凹坑和沟槽的应力计算

Stress Calculation of Surface Pits and Grooves in Pressure Vessels

压力容器制造和使用中可能产生表面凹坑和沟槽等缺陷，笔者研究了这类缺陷部位的应力计算方法，建立了圆筒形容器表面凹坑和沟槽部位的应力计算式，其椭球形凹坑应力的计算值与文献［２］中的实验值符合，沟槽应力的计算值也与实验值符合。

t is possible to occur Pits and grooves on the surface of pressureVessels during fabrication and service of vessels. The author investigated theirstress calculation, establishing the stress calculation formulas for these defects on the surface of vessels.the stress calculation results of elliptical surface stains arein line with practical measurement offered in article[2],the groove’s calculationresults are also conform to practical measurement.