Post-buckling analysis of plates and struts with initial imperfection

Pao Yue-kong Library Electronic Theses Database

Post-buckling analysis of plates and struts with initial imperfection

 

Author: Lui, Tai-hong
Title: Post-buckling analysis of plates and struts with initial imperfection
Year: 2000
Subject: Plates (Engineering)
Struts (Engineering)
Buckling (Mechanics)
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Civil and Structural Engineering
Pages: xiv, 99, 3 leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1520781
URI: http://theses.lib.polyu.edu.hk/handle/200/3122
Abstract: Computation procedures for predicting the post-buckling responses of struts and plates with general initial imperfections, when subjected to progressive end shortening, are developed. Geometric non-linearity is introduced into the strain-displacement relations in a manner consistent with the von Karman assumptions. The set of non-linear equilibrium equations is solved by a Newton-Raphson procedure. In the post-buckling analysis if struts, the actual initial imperfection is simulated by suitable polynomial function, while the deformations are expressed by Fourier series. Transverse shear effect is included in the formulation. Comparisons with classical solutions without transverse shear and experimental results are presented. In the context of classical plate theory, a finite strip approach is developed for predicting the post-buckling response of plates under uniform end shortening. Out-of-plane initial imperfection is represented by a set of polynomial functions in the longitudinal direction, which are interpolated by some crosswise functions in the transverse direction. The approach is very general and is applicable to anisotopic plates and plates with general shapes of initial imperfection. Applications on perfectly flat plates and plates with various forms of initial imperfections are considered. It is demonstrated that both the post-buckling behaviors and deformed shapes are strongly influenced by the magnitudes and shapes of the initial imperfections.

Files in this item

Files Size Format
b1520781x.pdf 2.795Mb PDF
Copyright Undertaking
As a bona fide Library user, I declare that:
  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

     

Quick Search

Browse

More Information