Published in: فصلنامه مکانیک جامد، دوره: 7، شماره: 4
COI code: JR_JSMA-7-4_006
Paper Language: English
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Authors The Effect of Fiber Breakage on Transient Stress Distribution in a Single-Lap Joint Composite MaterialM Shishehsaz - Department of Mechanical Engineering, Shahid Chamran University
S Yaghoubi - Department of Mechanical Engineering, Bu-Ali Sina University
Abstract:In the present study, the transient stress distribution caused by a break in the fibers of an adhesive bonding is investigated. Transient stress is a dynamic response of the system to any discontinuity in the fibers from detachment time till their equilibrium state (or steady state). To derive the governing dynamic equilibrium equations shear lag model is used. Here, it is assumed that the tensile load is supported only by the fibers. Employing dimensionless equations, initial conditions and proper boundary conditions, the differential-difference equations are solved using explicit finite difference method and the transient stress distribution is obtained in the presence of discontinuities. The present work aims to investigate the transient stress distribution in a single-lap joint, caused by the fiber breakage in a single layer of the adhesive joint. For this purpose, the effect of different number of broken fibers (including mid fiber) in the adherend on load distribution in other intact filaments, the location of fiber breaks in the adherend, and the effect of adhesive length is studied on the overall joint behavior. The results show that a the fiber is broken away, the amount of initial shock (maximum load) into the fiber and thus the dynamic overshoot is reduced. Maximum amount of shock in the lateral fibers is broken at this point due to breakage in the thirteenth fiber maximum axial load and shock are introduce to the fourteenth fiber.
Keywords:Composite, Fibers, Adhesive joints, Stress concentration, Transient stress
COI code: JR_JSMA-7-4_006
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Shishehsaz, M & S Yaghoubi, 2015, The Effect of Fiber Breakage on Transient Stress Distribution in a Single-Lap Joint Composite Material, Journal of Solid Mechanics 7 (4), https://www.civilica.com/Paper-JR_JSMA-JR_JSMA-7-4_006.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Shishehsaz, M & S Yaghoubi, 2015)
Second and more: (Shishehsaz & Yaghoubi, 2015)
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Type: state university
Paper No.: 13712
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