BUCKLING ANALYSIS OF LAMINATED SANDWICH BEAM WITH SOFT CORE

Authors

  • HANUMAN DEVIDAS CHALAK INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA
  • ANUPAM CHAKRABARTI INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA
  • MOHD.ASHRAF IQBAL INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA
  • ABDUL HAMID SHEIKH UNIVERSITY OF ADELAIDE

Keywords:

SANDWICH BEAM, SOFT CORE, ZIGZAG THEORY, FINITE ELEMENT, STRESS CONTINUITY

Abstract

STABILITY ANALYSIS OF LAMINATED SOFT CORE SANDWICH BEAM HAS BEEN STUDIED BY A C0 FE MODEL DEVELOPED BY THE AUTHORS BASED ON HIGHER ORDER ZIGZAG THEORY (HOZT). THE IN-PLANE DISPLACEMENT VARIATION IS CONSIDERED TO BE CUBIC FOR THE FACE SHEETS AND THE CORE, WHILE TRANSVERSE DISPLACEMENT IS QUADRATIC WITHIN THE CORE AND CONSTANT IN THE FACES BEYOND THE CORE. THE PROPOSED MODEL SATISFIES THE CONDITION OF STRESS CONTINUITY AT THE LAYER INTERFACES AND THE ZERO STRESS CONDITION AT THE TOP AND BOTTOM OF THE BEAM FOR TRANSVERSE SHEAR. NUMERICAL EXAMPLES ARE PRESENTED TO ILLUSTRATE THE ACCURACY OF THE PRESENT MODEL.

Author Biographies

HANUMAN DEVIDAS CHALAK, INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA

RESEARCH SCHOLAR

CIVIL ENGINEERING DEPARTMENT

ANUPAM CHAKRABARTI, INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA

ASSITANT PROFESSOR

CIVIL ENGINEERING DEPARTMENT

MOHD.ASHRAF IQBAL, INDIAN INSTITUTE OF TECHNOLOGY ROORKEE INDIA

ASSITANT PROFESSOR

CIVIL ENGINEERING DEPARTMENT

ABDUL HAMID SHEIKH, UNIVERSITY OF ADELAIDE

  SCHOOL OF CIVIL, ENVIRONMENT AND MINING ENGINEERING

Published

2012-06-30

Issue

Section

Articles