拉压强度不同材料厚壁球壳的安定性分析  

Shakedown analysis of thick spherical shell of material with different strength in tension and compression

作　　者：徐栓强[1] 俞茂宏[1] 

机构地区：[1]西安交通大学建筑工程与力学学院

出　　处：《机械设计与制造》2005年第1期36-37,共2页Machinery Design & Manufacture

摘　　要：对拉压强度不同材料厚壁球壳进行了安定分析,得出了球壳加载应力场、残余应力场及安定极限的解析解,所得的解能反映材料拉压强度差效应。最后,利用所得的解研究了材料拉压强度差效应对球壳安定极限的影响,结果表明,考虑材料拉压强度差效应时球壳安定极限将明显提高。Shakedown analysis of a thick spherical shell of material with different strength in tension and compression was carried out. The solutions for the loading stress fields, the residual stress fields and the shakedown limit of the thick spherical shell were obtained, which can take account of the strength-difference effect of ma terials. Finally, the influence of the strength-difference effect on shakedown limit was investigated by the current solution, the results show that the shake down limit increase when the strength-difference effect of materials is consid ered.

关 键 词：安定分析 SD效应 厚壁球壳 

分 类 号：TQ051[化学工程] O344[理学—固体力学]