ON A FOUR-NODE QUADRILATERAL PLATE FOR LAMINATED COMPOSITES

Authors

  • JOAO ELIAS ABDALLA FILHO 1-PROGRAMA DE POS-GRADUACAO EM ENGENHARIA MECANICA PONTIFICIA UNIVERSIDADE CATOLICA DO PARANA 2- PROGRAMA DE POS-GRADUACAO EM ENGENHARIA CIVIL UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANA
  • IVAN MOURA BELO UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANA
  • JOHN OTTO DOW UNIVERSITY OF COLORADO BOULDER

Keywords:

LAMINATED COMPOSITE PLATES, FIRST-ORDER SHEAR DEFORMATION THEORY, STRAIN GRADIENT NOTATION, SHEAR LOCKING, PARASITIC SHEAR, FINITE ELEMENT METHOD

Abstract

AN ASSESSMENT OF THE EFFICIENCY AND CONVERGENCE CHARACTERISTICS OF A FOUR-NODE QUADRILATERAL PLATE FINITE ELEMENT IN THE ANALYSIS OF LAMINATED COMPOSITES IS PERFORMED. THE ELEMENT, WHICH IS SUITABLE FOR GLOBAL RE-SPONSE ANALYSIS, IS DEVELOPED IN THE FRAMEWORK OF THE STRAIN GRADIENT NOTATION SUCH THAT ITS MODELING CAPABILITIES AS WELL AS MODELING DEFICIENCIES CAN BE PHYSICALLY INTERPRETED BY THE ANALYST DURING THE FORMULATION PROCESS. THUS, SHEAR LOCKING TYPICALLY ENCOUNTERED IN FOUR-NODED PLATE ELEMENTS IS IDENTIFIED AS CAUSED BY SPURIOUS TERMS WHICH APPEAR IN THE SHEAR STRAIN POLYNOMIAL EXPANSIONS. THESE IDENTIFIED SPURIOUS TERMS ARE REMOVED A PRIORI SUCH THAT SHEAR LOCKING DOES NOT OCCUR DURING NUMERICAL ANALYSIS AND NUMERICAL REMEDIES DO NOT NEED TO BE APPLIED. STRESS SOLUTIONS FOR DIFFERENT LAMINATED PLATES ARE PRESENTED TO DEMONSTRATE THAT THE CORRECTED MODEL CONVERGES WELL TO REFERENCE SOLUTIONS.

Author Biographies

JOAO ELIAS ABDALLA FILHO, 1-PROGRAMA DE POS-GRADUACAO EM ENGENHARIA MECANICA PONTIFICIA UNIVERSIDADE CATOLICA DO PARANA 2- PROGRAMA DE POS-GRADUACAO EM ENGENHARIA CIVIL UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANA

PROGRAMA DE PÓS_GRADUAÇÃO EM ENGENHARIA MECÂNICA / PUCPR

PROFESSOR TITULAR

PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA CIVIL / UTFPR

PROFESSOR ASSOCIADO

IVAN MOURA BELO, UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANA

DEPARTAMENTO DE ENGENHARIA MECANICA

JOHN OTTO DOW, UNIVERSITY OF COLORADO BOULDER

DEPARTMENT OF CIVIL, ENVIRONMENTAL AND ARCHITECTURAL ENGINEERING

PROFESSOR EMERITUS

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Published

2017-08-26

Issue

Vol. 14 No. 12 (2017)

Section

Articles

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