NUMERICAL ANALYSIS OF GEOMETRICALLY NON-LINEAR BEHAVIOR OF FUNCTIONALLY GRADED SHELLS

Authors

  • JAMEL MARS MECHANICAL MODELING AND MANUFACTURING LABORATORY (LA2MP), NATIONAL ENGINEERING SCHOOL OF SFAX
  • SANA KOUBAA MECHANICAL MODELING AND MANUFACTURING LABORATORY (LA2MP), NATIONAL ENGINEERING SCHOOL OF SFAX
  • MONDHER WALI MECHANICAL MODELING AND MANUFACTURING LABORATORY (LA2MP), NATIONAL ENGINEERING SCHOOL OF SFAX HTTP://ORCID.ORG/0000-0001-8384-8936
  • FAKHREDDINE DAMMAK MECHANICAL MODELING AND MANUFACTURING LABORATORY (LA2MP), NATIONAL ENGINEERING SCHOOL OF SFAX

Keywords:

GEOMETRIC NONLINEAR, FUNCTIONALLY GRADED SHELLS, NUMERICAL IMPLEMENTATION

Abstract

IN THIS PAPER, A GEOMETRICALLY NONLINEAR ANALYSIS OF FUNCTIONALLY GRADED MATERIAL (FGM) SHELLS IS INVESTIGATED USING ABAQUS SOFTWARE. A USER DEFINED SUBROUTINE (UMAT) IS DEVELOPED AND IMPLEMENTED IN ABAQUS/STANDARD TO STUDY THE FG SHELLS IN LARGE DISPLACEMENTS AND ROTATIONS. THE MATERIAL PROPERTIES ARE INTRODUCED ACCORDING TO THE INTEGRATION POINTS IN ABAQUS VIA THE UMAT SUBROUTINE. THE PREDICTIONS OF STATIC RESPONSE OF SEVERAL NON-TRIVIAL STRUCTURE PROBLEMS ARE COMPARED TO SOME REFERENCE SOLUTIONS IN ORDER TO VERIFY THE ACCURACY AND THE EFFECTIVENESS OF THE NEW DEVELOPED NONLINEAR SOLUTION PROCEDURES. ALL THE RESULTS INDICATE VERY GOOD PERFORMANCE IN COMPARISON WITH REFERENCES.

Downloads

Published

2017-08-26

Issue

Section

Articles