关键词: 压力容器, 应力, 分类, 设计, 功能函数, 边缘应力

Abstract: The method of stress classification design and that of structure reliability design are combined in this paper.The shell of pressure vessel is designed through the link point of head and cylinder,considering fully different specific property of variable stress and the randomness of each design parameter.The new method is valuable for practical use of stress classification method and structure reliability theory.Finally,the detail procedure of the stress classification reliability design is presented by a instance.

Key words: pressure vessel, stress, classification, design, edge stress function reliability