Geometric Nonlinear Analysis of Stiffened Prismatic Shell Structures using the Compound Strip Method

2013 ◽  
Author(s):  
A. Borkovic
Keyword(s):  
Nonlinear Analysis ◽  
Shell Structures ◽  
Strip Method ◽  
Geometric Nonlinear ◽  
Prismatic Shell ◽  
Geometric Nonlinear Analysis

Geometric nonlinear analysis of prismatic shells using the semi-analytical finite strip method

2017 ◽  
Vol 117 ◽  
pp. 63-88 ◽  
Author(s):  
A. Borković ◽  
S. Kovačević ◽  
D.D. Milašinović ◽  
G. Radenković ◽  
O. Mijatović ◽  
...  
Keyword(s):  
Nonlinear Analysis ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Geometric Nonlinear ◽  
Geometric Nonlinear Analysis

Corotational Formulation for Geometric Nonlinear Analysis of Shell Structures by ANDES Elements

2016 ◽  
Vol 16 (03) ◽  
pp. 1450103
Author(s):  
Yi Zhou ◽  
Yuan-Qi Li ◽  
Zu-Yan Shen ◽  
Ying-Ying Zhang
Keyword(s):  
Nonlinear Analysis ◽  
Large Body ◽  
Nonlinear Problems ◽  
Shell Structures ◽  
Global Coordinate System ◽  
Tangent Stiffness Matrix ◽  
Structural Problems ◽  
Geometric Nonlinear ◽  
Nonlinear Structural ◽  
Geometric Nonlinear Analysis

The corotational (CR) kinematic description was a recent method for formulation of geometric nonlinear structural problems. Based on the consistent symmetrizable equilibrated (CSE) CR formulation, a linear triangular flat shell element with three translational and three rotational degrees of freedom (DOFs) at each of the three nodes was derived by the assumed natural deviatoric strain (ANDES) formulation, which can be used to the geometric nonlinear analysis of shell structures with large rotations and small strains. By taking variations of the internal energy with respect to nodal freedoms, the equations for the CR nonlinear finite element, including the tangent stiffness matrix and the internal force vector in the global coordinate system, were derived. The nonlinear equations were solved by using the generalized displacement control (GDC) method. It was shown through numerical examples that combing CR formulation and ANDES elements can accurately solve complex geometric nonlinear problems with large body motions. As revealed by the efficiency and reliability of the ANDES elements in tracing the nonlinear structural load–deflection response, it is demonstrated that some membrane elements and plate elements give better performance in the geometric nonlinear analysis of shell structures.

A model for thin shells in the combined finite-discrete element method

2018 ◽  
Vol 35 (1) ◽  
pp. 377-394 ◽  
Author(s):  
Ivana Uzelac ◽  
Hrvoje Smoljanovic ◽  
Milko Batinic ◽  
Bernardin Peroš ◽  
Ante Munjiza
Keyword(s):  
Numerical Model ◽  
Discrete Element Method ◽  
Nonlinear Analysis ◽  
Thin Shell ◽  
Discrete Element ◽  
Shell Structures ◽  
Content Type ◽  
Geometric Nonlinear ◽  
Large Rotations ◽  
Geometric Nonlinear Analysis

Purpose This paper aims to present a new numerical model for geometric nonlinear analysis of thin-shell structures based on a combined finite-discrete element method (FDEM). Design/methodology/approach The model uses rotation-free, three-node triangular finite elements with exact formulation for large rotations, large displacements in conjunction with small strains. Findings The presented numerical results related to behaviour of arbitrary shaped thin shell structures under large rotations and large displacement are in a good agreement with reference solutions. Originality/value This paper presents new computationally efficient numerical model for geometric nonlinear analysis and prediction of the behaviour of thin-shell structures based on combined FDEM. The model is implemented into the open source FDEM package “Yfdem”, and is tested on simple benchmark problems.

Geometric nonlinear analysis of tall building structures with outriggers

2011 ◽  
Vol 22 (5) ◽  
pp. 454-470 ◽  
Author(s):  
Jaehong Lee ◽  
Daekyu Park ◽  
Kihak Lee ◽  
Namshik Ahn
Keyword(s):  
Nonlinear Analysis ◽  
Tall Building ◽  
Building Structures ◽  
Geometric Nonlinear ◽  
Geometric Nonlinear Analysis
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