壳体大变形理论及应用——Ⅰ.壳体大变形几何  

Large Deformation Theory of Shell and Its Application Ⅰ.Description of Shell Deformation in Comoving System

作　　者：孙博华[1] 

机构地区：[1]兰州大学力学系,兰州730000

出　　处：《兰州大学学报（自然科学版）》1993年第2期20-30,共11页Journal of Lanzhou University(Natural Sciences)

摘　　要：本文使用转动与应变分解的近似定理,建立了新的壳体大变形近似理论.本理论最大优点是转动张量与应变张量相匹配.作为本理论的应用,导出了一系列简化理论.A new kind of large approximated theory of shell has beenestablished by adopting the approximate strain—rotation decompositiontheorem in continuum mechanics.The accuracy of K—L Simplication isdiscussed.It is shown that the simplication has reglected the influence ofrotation at large.The present theory leads to all important classicalresults according to various conditions and different orders of approximation.

关 键 词：转动 分解 大变形 近似理论 壳体 

分 类 号：O343.5[理学—固体力学]