摘要
给出了偏心加筋板大变形分析的理论公式和相应的梁板单元模型 .在肋骨和板的运动方程中引用 Von Karman形变方程 ;按照 Mindlin板理论计及横向剪切变形的影响 ;对横向剪应变和薄膜应变重新插值修正克服 Mindlin型单元在薄板应用时的“锁定”行为 ,此模型可适合于薄板和厚板的非线性分析 .
In this paper, the formulations and beam plate element model for large deformation analysis of eccentrically stiffened plates are presented. The Von Karman kinematic relations of the plate and stiffener are considered in the formulation. Also, the formulation accounts for transverse shear deformation effects of the plate and stiffener in terms of Mindlin hypothesis, and a interpolation for revising membrane strains and transverse shear strains is used to overcome ‘locking’ behavior. This model is applicable for analysis of both thin and thick stiffened plates. One numerical example is presented for the non linear response of stiffened plate.
出处
《海军工程大学学报》
CAS
2000年第3期31-34,共4页
Journal of Naval University of Engineering
关键词
偏心加筋板
大变形
有限元
横向剪切变形
eccentrically stiffened plate
large deformation
finite element
transverse shear
