不同拉压模量厚壁球壳的弹塑性分析  

Analysis on Elastoplastic of Thick Spherical Shell with Different Modulus of Tension and Compression

作　　者：付厚利[1] 茅晓辉[1] 孔娟[2] 

机构地区：[1]山东科技大学土木建筑学院,山东青岛266510 [2]同济大学建筑工程学院,上海210096

出　　处：《山东科技大学学报（自然科学版）》2009年第2期28-31,共4页Journal of Shandong University of Science and Technology(Natural Science)

摘　　要：基于理想弹塑性模型,对拉压模量不同的厚壁球壳进行弹塑性分析。在不同内压作用下,对厚壁球壳进行了弹性分析、弹塑性分析,最后进行塑性极限分析,并求解厚壁球壳各个状态下的应力及位移的大小。分别讨论了弹塑性边界位置不同时,球壳内壁开始屈服的弹性极限压力及球壳整个截面完全屈服的塑性极限压力。According to the perfect elastoplastic model, the elastoplastic of thick spherical shell with the different elastic modulus of tension and compression was analyzed. Under the action of different internal pressures, the discussion of thick spherical shell was made from elastic analysis, elastoplastic analysis, until plastic limit analysis. The values of stress and displacement of spherical shell in the varied states were obtained. The elastic limit pressure of shell with the inner side of spherical shell yielded and the plastic limit pressure with the total cross section of spherical shell fully yielded were discussed respectively at the different positions of elastoplastic boundaries.

关 键 词：厚壁球壳 拉压弹性模量 弹塑性分析 

分 类 号：O344.3[理学—固体力学]