AN EFFICIENT C0 FE MODEL FOR THE ANALYSIS OF COMPOSITES AND SANDWICH LAMINATES WITH GENERAL LAYUP

Authors

  • SUSHIL KUMAR SINGH
  • ANUPAM CHAKRABARTI
  • P. BERA
  • SONY J.S.D.

Keywords:

FINITE ELEMENT, INTERLAMINAR STRESS CONTINUITY, COMPOSITES, SANDWICH

Abstract

A C0 CONTINUOUS FINITE ELEMENT MODEL IS DEVELOPED TO MODEL THE REFINED HIGHER ORDER SHEAR DEFORMATION THEORY. THE PROPOSED ELEMENT IS AN UPGRADED VERSION OF AN ELEMENT BASED ON HIGHER ORDER SHEAR DEFORMATION THEORY. THE C0 CONTINUITY OF THE PRESENT ELEMENT IS COMPENSATED IN THE STIFFNESS MATRIX CALCULATIONS. THE COMPUTATIONAL EFFICIENCY IS ACHIEVED BY THE C0 CONTINUOUS FINITE ELEMENT MODEL BY SATISFYING THE INTER-LAMINAR SHEAR STRESS CONTINUITY AT THE INTERFACES AND ZERO TRANSVERSE SHEAR STRESS CONDITIONS AT PLATE TOP AND BOTTOM. THE PERFORMANCE OF THE UPGRADED ELEMENT IS ILLUSTRATED WITH MANY NUMERICAL EXAMPLES.

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Published

2011-06-02

Issue

Vol. 8 No. 2 (2011)

Section

Articles

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