Three dimensional stress analysis of adhesively bonded and multi pinned metal matrix composite plates

Faruk Sen; Hakan Köksal

doi:10.3139/120.110746

Article

Three dimensional stress analysis of adhesively bonded and multi pinned metal matrix composite plates

Faruk Sen and Hakan Köksal

Published/Copyright: May 15, 2015

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From the journal Materials Testing Volume 57 Issue 6

Abstract

In this study, stress analyses have been performed for adhesively bonded and multi pinned metal matrix composite plates. The joint can be defined as hybrid structure providing various aims such as increasing loading capacity, corrosion resistance between plates etc. The finite element method was used for determination of three dimensional stresses acting on the hybrid joint. It is designed of metal matrix composite plates with epoxy adhesive and four pins. Both, the modeling and solution processes have been carried out using the ANSYS software which is well-known as a reliable finite element program. Stresses have been assumed as a consequence of tensile loadings at 80, 120, 160, 200, 240 N and uniform temperatures at 55, 65, 75, 85, 95 °C. According to the obtained analysis results, thermal stresses were especially concentrated around the pin holes. Hence, it has to be anticipated that any failure of the hybrid joint may start from pin hole zone firstly. Furthermore, the magnitudes of stresses were increased by increasing both, the tensile loading and the uniform temperature.

Kurzfassung

In der diesem Beitrag zugrunde liegenden Studie wurde eine Spannungsanalyse für adhäsiv geklebte und mehrfach gepinnte Metallmatrix-Kompositplatten durchgeführt. Die Verbindung kann hierbei als Hybridstruktur definiert werden, mit der verschiedene Ziele verfolgt werden, wie zum Beispiel die Erhöhung des Belastungsvermögens, des Korrosionswiderstands zwischen den Platten, usw. Zur Bestimmung der dreidimensionalen Spannungen in der Hybridverbindung wurde die Finite Elemente Methode angewandt. Es wurden hierzu Metallmatrix-Kompositplatten geklebt mit Epoxidklebstoff und vier Pinnbefestigungen verwendet. Der Modellierungs- und der Lösungsprozess wurden mittels der ANSYS-Software durchgeführt, die als perfektes Finite Elemente Analyseprogramm bekannt ist. Die Spannungen wurden als Folge verschiedener Lasten von 80, 120, 160, 200 und 240 N sowie bei gleichförmigen Temperaturen von 55, 65, 75, 85 und 95 °C ermittelt. Entsprechend der gewonnenen Analyseergebnisse konzentrierten sich die thermischen Spannungen besonders um die Pinnlöcher. Dabei wird davon ausgegangen, dass ein Versagen der Hybridverbindung zuerst in der Zone um das Pinnloch auftritt. Darüber hinaus nahm die Höhe der Spannungen durch Zunahme der Zugbeanspruchungen und der gleichförmigen Temperatur zu.

§Correspondence Address, Faruk Sen, Energy Systems Engineering, Technology Faculty, Muğla Sıtkı Koçman University, Kötekli Campus, 48000, Menteşe, Muğla, Turkey, E-mail: faruksen@mu.edu.tr

Dr. Faruk Sen, born in 1977, is Associate Professor at Energy Systems Engineering, Technology Faculty, Muğla Sıtkı Koçman University, Turkey. He is a mechanical engineer and obtained his PhD degree from Dokuz Eylul University, Izmir, Turkey, in 2007. His research interests cover coating materials, modeling, failure analyses, joints, composite materials and finite element methods.

MSc. Hakan Köksal, born in 1979, is working as Engineer in the Mercedes-Benz Truck Factory in Aksaray, Turkey. He graduated at the Materials Science and Engineering Department of the Middle East Technical University in Ankara, Turkey in 2003. His research interests include materials testing, modeling, joints, composite materials and finite element methods.

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Published Online: 2015-05-15

Published in Print: 2015-06-01

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https://doi.org/10.3139/120.110746