Journal of the Korean Society for Advanced Composite Structures (복합신소재구조학회 논문집)

Korean Society for Advanced Composite Structures (한국복합신소재구조학회)
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Geometrically Nonlinear Analysis of Hinged Cylindrical Laminated Composite Shells

활절로 지지된 원통형 적층복합쉘의 기하학적 비선형 해석

  • Han, Sung-Cheon (Department of Civil and Railroad Engineering, Daewon University College)
  • 한성천 (대원대학교 철도건설과)
  • Received : 2012.03.27
  • Accepted : 2012.05.25
  • Published : 2012.06.30
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Abstract

In the present study, an Element-Based Lagrangian Formulation for the nonlinear analysis of shell structures is presented. The strains, stresses and constitutive equations based on the natural co-ordinate have been used throughout the Element-Based Lagrangian Formulation of the present shell element which offers an advantage of easy implementation compared with the traditional Lagrangian Formulation. The Element-Based Lagrangian Formulation of a 9-node resultant-stress shell element is presented for the anisotropic composite material. The element is free of both membrane and shear locking behavior by using the assumed natural strain method such that the element performs very well in thin shell problems. The arc-length control method is used to trace complex equilibrium paths in thin shell applications. Numerical examples for laminated composite curved shells presented herein clearly show the validity of the present approach and the accuracy of the developed shell element.

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References

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  1. Nonlinear Analysis of Composite Plates and Shells Subjected to In-Plane Loading vol.877, pp.None, 2012, https://doi.org/10.4028/www.scientific.net/amm.877.341