THEORETICAL ANALYSIS OF STRESS DISTRIBUTION IN BONDED SINGLE STRAP AND STIFFENED JOINTS

Authors

  • BEHNAM GHODDOUS YOUNG RESEARCHERS AND ELITE CLUB, AHVAZ BRANCH , ISLAMIC AZAD UNIVERSITY, AHVAZ , IRAN

Keywords:

STRESS DISTRIBUTION, ADHESIVE JOINT, STRAP JOINT, STIFFENED JOINT, FINITE ELEMENT, PEELING STRESS

Abstract

ABSTRACT IN THIS PAPER, DISTRIBUTION OF PEELING STRESS IN TWO TYPES OF ADHE-SIVELY-BONDED JOINTS IS INVESTIGATED. THE JOINTS ARE A SINGLE STRAP AND A STIFFENED JOINT. THESES JOINTS ARE UNDER UNIFORM TENSILE LOAD AND MATERIALS ARE ASSUMED ORTHOTROPIC. LAYERS CAN BE IDENTICAL OR DIFFERENT IN MECHANICAL OR GEOMETRICAL PROPERTIES. A TWO-DIMENSIONAL ELASTICITY THEORY THAT INCLUDES THE COMPLETE STRESS-STRAIN AND THE COMPLETE STRAIN-DISPLACEMENT RELATIONS FOR ADHESIVE AND ADHERENDS IS USED IN THIS ANALYSIS. THE DISPLACEMENT IS AS-SUMED TO BE LINEAR IN THE ADHESIVE LAYER. A SET OF DIFFERENTIAL EQUA-TIONS WAS DERIVED AND SOLVED BY USING APPROPRIATE BOUNDARY CONDITIONS. RESULTS REVEALED THAT THE PEAK PEELING STRESS DEVELOPED WITHIN THE ADHESIVE LAYER IS A FUNCTION OF GEOMETRICAL AND MECHAN-ICAL PROPERTIES. FEM SOLUTION IS USED AS THE SECOND METHOD TO VERIFY THE ANALYTICAL RESULTS. A GOOD AGREEMENT IS OBSERVED BE-TWEEN ANALYTICAL AND FEM SOLUTIONS.

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Published

2016-11-29

Issue

Vol. 14 No. 02 (2017)

Section

Articles

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