IMPACT RESPONSE OF FUNCTIONALLY GRADED CONICAL SHELLS

Authors

  • SUDIP DEY POST DOCTORAL RESEARCHER, COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, UK
  • SONDIPON ADHIKARI PROFESSOR, COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, UK
  • AMIT KARMAKAR ASSOCIATE PROFESSOR, MECHANICAL ENGINEERING DEPARTMENT, JADAVPUR UNIVERSITY, INDIA

Keywords:

FUNCTIONALLY GRADED MATERIAL, FINITE ELEMENT, LOW VELOCITY IMPACT, TWIST ANGLE, OBLIQUE IMPACT ANGLE, CONICAL SHELL

Abstract

THIS PAPER PRESENTS THE EFFECT OF TRANSIENT LOW VELOCITY IMPACT RESPONSES OF FUNCTIONALLY GRADED PRETWISTED CONICAL SHELLS. THE MODIϬED HERTZIAN CONTACT LAW WHICH ACCOUNTS FOR PERMANENT INDENTATION IS UTILIZED TO COMPUTE THE CONTACT FORCE AND OTHER IMPACT PARAMETER. THE TIME DEPENDENT EQUATIONS ARE SOLVED BY NEWMARK’S TIME INTEGRATION SCHEME. AN EIGHT NODED ISOPARAMETRIC QUADRATIC ELEMENT IS EMPLOYED IN THE PRESENT ϬNITE ELEMENT FORMULATION. A PARAMETRIC STUDY IS CARRIED OUT TO INVESTIGATE THE EFFECTS OF TRIGGERING PARAMETERS LIKE INITIAL VELOCITY OF IMPACTOR, TWIST ANGLE, OBLIQUE IMPACT ANGLE, LOCATION OF IMPACT FOR STAINLESS STEEL-NICKEL FUNCTIONALLY GRADED CONICAL SHELL SUBJECTED TO LOW VELOCITY IMPACT.

Author Biographies

SUDIP DEY, POST DOCTORAL RESEARCHER, COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, UK

COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, SA2 8PP, UNITED KINGDOM

 

 

SONDIPON ADHIKARI, PROFESSOR, COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, UK

COLLEGE OF ENGINEERING, SWANSEA UNIVERSITY, SA2 8PP, UNITED KINGDOM

 

 

AMIT KARMAKAR, ASSOCIATE PROFESSOR, MECHANICAL ENGINEERING DEPARTMENT, JADAVPUR UNIVERSITY, INDIA

MECHANICAL ENGINEERING DEPARTMENT, JADAVPUR UNIVERSITY, INDIA

 

 

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Published

2015-01-22

Issue

Vol 12, No 01 (2015)

Section

Articles

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