Asymptotic post-buckling fem analysis of laminated composite folded plates

E. J. Barbero, A. Madeo, G. Zagari, R. Zinno, G. Zucco

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Koiter's asymptotic approach is a powerful alternative to path-following techniques in the analysis of slender structures. Its reliability for the evaluation of post-critical behavior, including strong nonlinear pre-critical and modal interaction, is well know. The most recent finite element implementations of Koiter's approach are based on corotational formulation, which allows to automatically reuse linear finite elements into a nonlinear context once the geometrically nonlinear corotational kinematics are developed. Beam assemblages, folded plates structures are extended here to laminated composite slender structures. By reusing the mixed finite element MISS-4 into a corotational framework, an analysis of folded plate structures within an FSDT theory is developed. The analysis of a box structure is presented to highlight the accuracy of the Koiter analysis in the recovery of buckling and post-buckling behavior with low computational cost.

Original languageEnglish
Title of host publication16th European Conference on Composite Materials, ECCM 2014
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9780000000002
Publication statusPublished - 2014
Externally publishedYes
Event16th European Conference on Composite Materials, ECCM 2014 - Seville, Spain
Duration: 22 Jun 201426 Jun 2014

Publication series

Name16th European Conference on Composite Materials, ECCM 2014

Conference

Conference16th European Conference on Composite Materials, ECCM 2014
Country/TerritorySpain
CitySeville
Period22/06/1426/06/14

Keywords

  • Buckling and post-buckling
  • Corotational kinematics
  • Imperfection sensitivity analysis
  • Laminated composite folded plates
  • Mixed finite element

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