Numerical research orthotropic geometrically nonlinear shell stability using the mixed finite element method

7th International Conference on Key Engineering Materials

材料科学;工业技术

Stupishin, L.^1 ; Nikitin, K.^1 ; Kolesnikov, A.^1

Urban Road Construction and Structural Mechanics Department, South-West State University, 50-let Octyabrya st., Kursk, 94

305040, Russia^1

关键词: Axisymmetric;    Buckling loads;    Geometrically nonlinear;    Mixed finite element methods;    Numerical research;    Orthotropic materials;    Shallow shells;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012019/pdf
DOI  :  10.1088/1757-899X/201/1/012019

来源: IOP

【 摘 要 】

A methodology for shell stability research and determining buckling load, based on the mixed finite element method are proposed. Axisymmetric geometrically nonlinear shallow shells made of orthotropic material are considered. The results of numerical research of stability by changing the shape of shells, ratio of elastic modulus of the material and parameters of the support contour are presented.