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RESEARCH PAPERS

Interaction of Mixed Mode Loading on Cyclic Debonding in Adhesively Bonded Composite Joints

[+] Author and Article Information
S. Mall

Department of Aeronautics and Astronautics, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433-6583

M. A. Rezaizadeh, R. Gurumurthy

Department of Engineering Mechanics, University of Missouri-Rolla, Rolla, MO 65401-0249

J. Eng. Mater. Technol 109(1), 17-21 (Jan 01, 1987) (5 pages) doi:10.1115/1.3225925 History: Received November 01, 1985; Online September 15, 2009

Abstract

A combined experimental and analytical investigation of an adhesively bonded composite joint was conducted to characterize the fracture mode dependence of cyclic debonding. The system studied consisted of graphite/epoxy adherends bonded with EC 3445 adhesive. Several types of specimens were tested which provided the cyclic debond growth rate measurements under various load conditions: mode I, mixed mode I and II, and almost mode II. This study showed that the total strain-energy-release rate was the governing factor for cyclic debonding.

Copyright © 1987 by ASME
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