A NUMERICAL INVESTIGATION INTO THE EFFECTS OF PARABOLIC CURVATURE ON THE BUCKLING STRENGTH AND BEHAVIOUR OF STIFFENED PLATES UNDER IN-PLANE COMPRESSION

Authors

  • MOHAMMAD REZA KHEDMATI AMIRKABIR UNIVERSITY OF TECHNOLOGY
  • PEDRAM EDALAT PHD CANDIDATE, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN 15914, IRAN

Keywords:

CURVED STIFFENED PLATE, PARABOLIC CURVATURE, EIGENVALUE BUCKLING, FINITE ELEMENT METHOD (FEM), HEAVY AND LIGHT STIFFENING

Abstract

THE MAIN TARGETS OF THIS RESEARCH ARE MAINLY DIVIDED IN TO TWO PARTS: (1) IDENTIFYING THE EFFECTS OF PARABOLIC CURVATURE ON THE BUCKLING STRENGTH AND BEHAVIOUR OF STIFFENED PLATES UNDER IN-PLANE COMPRESSION, (2) GENERATING PRACTICAL GRAPHS FOR EXTRACTING EIGENVALUE BUCKLING STRESS OF PARABOLIC CURVED STIFFENED PLATE TO DIMENSIONLESS PARAMETERS. A PARAMETRIC MODEL FOR STUDY OF THE PROBLEM IS CREATED. THE MODEL INCLUDES DIFFERENT PARAMETERS RELATED TO PLATE, STIFFENERS AND ALSO PARABOLIC CURVATURE. THREE DISTINCT SENSITIVITY CASES ARE ASSUMED. IN EACH SENSITIVITY CASE, MANY DIFFERENT MODELS ARE ANALYSED AND THEIR BUCKLING STRENGTHS ARE OBTAINED USING A FINITE ELEMENT COMMERCIAL PROGRAM (ANSYS). BUCKLING STRENGTH AND BEHAVIOUR OF ALL MODELS WITH DIFFERENT RATIOS OF PARABOLIC CURVATURE ARE COMPARED TO EACH OTHER.

Author Biographies

MOHAMMAD REZA KHEDMATI, AMIRKABIR UNIVERSITY OF TECHNOLOGY

϶ B.SC. IN CIVIL ENGINEERING, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, 1985-1989.
϶ M.SC. IN NAVAL ARCHITECTURE, TECHNICAL UNIVERSITY OF GDANSK, GDANSK, POLAND, 1991-1993.
϶ DR.ENG. IN STRUCTURAL ENGINEERING, HIROSHIMA UNIVERSITY, HIGASHI-HIROSHIMA, JAPAN, 1997-2000.

+ ASSOCIATE PROFESSOR, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, (SINCE APRIL 2007)

+ ASSISTANT PROFESSOR, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, (OCT. 2000- APRIL 2007)

PEDRAM EDALAT, PHD CANDIDATE, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN 15914, IRAN

BSC IN NAVAL ARCHITECTURE

MSC IN SHIP STRUCTURAL ENGINEERING

PHD STUDENT IN SHIP STRUCTURAL ENGINEERING

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Published

2010-09-02

Issue

Vol. 7 No. 3 (2010)

Section

Articles

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