An Eccentric Degenerated Shell Element for the Geometrically Nonlinear Analysis of Stiffened Structures

- Journal title : Transactions of the Korean Society of Mechanical Engineers A
- Volume 24, Issue 7, 2000, pp.1721-1730
- Publisher : The Korean Society of Mechanical Engineers
- DOI : 10.22634/KSME-A.2000.24.7.1721

Title & Authors

An Eccentric Degenerated Shell Element for the Geometrically Nonlinear Analysis of Stiffened Structures

Lee, Won-Jae; Lee, Byeong-Chae;

Lee, Won-Jae; Lee, Byeong-Chae;

Abstract

An eccentric degenerated shell element with geometric non-linearity for the precise and efficient analysis of stiffened shell structures is developed. To deal with the eccentricity, we define the e ccentric shell and the master shell that constitute one combined shell. It is assumed that the sections remain plane after deformation. The internal force vector and the tangent stiffness matrix based on the virtual work principle in the natural coordinate system are derived. To enhance the robustness of the element, assumed strain method for transverse shear and membrane strains is used. Through numerical experiments the effectiveness of the proposed element is demonstrated.

Keywords

Eccentric Shell;Stiffened Structure;

Language

Korean

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