厚壁球形封头应力计算的有限元建模研究  

Research on Modeling of Finite Element of Thick-walled Spherical Head in Stress Calculation

作　　者：刘伯玉[1] 丁传安[1] 

机构地区：[1]江苏扬州工业职业技术学院,扬州225127

出　　处：《现代制造技术与装备》2010年第5期9-9,11,共2页Modern Manufacturing Technology and Equipment

摘　　要：厚壁球形封头在内压力作用下,应力计算按照经典力学理论,采用近似数值计算方法;按弹性分析理论,不能直观表达应力沿壁厚的分布;本文运用有限元等数值模拟技术,能比较快速、精确地获得工作状态下的应力数值的大小和分布状况,以此对结构的设计和优化等提供便捷、有效的计算模型。The stress of thick-walled spherical head under inner pressure,using approximate numerical method,is calculated according to classical mechanics.As elastic analytical theory can not directly show the distribution of stress along the wall thickness,this paper adopts the finite element numerical simulation techniques so as to get a quick and accurate access to the size and distribution of values under the stress of a task,thus providing a convenient and effective computing modeling on the structural design and optimization.

关 键 词：厚壁容器 球形封头 应力 有限元法 建模 

分 类 号：TH123.4[机械工程—机械设计及理论]