Parametric study of the creep failure of double lap adhesively bonded joints |
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| Affiliation: | 1. School of Automotive Engineering, Dalian University of Technology, Dalian 116024, PR China;2. Mechanical Engineering Science, University of Surrey, Guildford GU2 7XH, UK;3. Civil Engineering, University of Mataram, Mataram 83125, Indonesia;1. Dept. of Mechanical Eng., Atatürk Üniversity, 25240 Erzurum, Turkey;2. Dept. of Mechanical Eng., Erzurum Technical University, 25050 Erzurum, Turkey;1. Department of Civil Engineering, University of New Mexico, MSC01 1070, NM 87131-0001, USA;2. Egyptian Petroleum Research Institute, 1 Ahmed El-Zomor Street, Nasr City, Cairo 11727, Egypt;1. Department of Emerging Technologies & Concepts, Airbus Group, Spain;2. Department of Continuum Mechanics and Structural Analysis, University Carlos III of Madrid, Av. de la Universidad, 30, 28911 Leganes, Spain |
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| Abstract: | In this paper the influence of adhesive thickness and adhesive fillet on the creep deformation and creep life time of the adhesively bonded double lap joint have been studied experimentally. Also finite element modeling was used to simulate creep behavior of bonded joints and the results are compared with those obtained from experimental tests. The adhesive used in this research was Araldite 2015 which is an epoxy based adhesive. Research procedure is carried out in two major stages. Firstly, uniaxial creep tests were conducted in 63 °C to obtain the creep characteristics and constitutive equation parameters of the adhesive at 63 °C. An empirical based rheological model based on Maxwell and Zener’s model is proposed to simulate the creep behavior of the adhesive and it is used to predict the creep behavior of the bonded joint using finite element method. Numerical results show good agreement with experimental data. It was observed that applying fillet increases creep life and decreases joint creep deformation, however increasing adhesive thickness has slight effect on the creep life time of the joint. |
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| Keywords: | Adhesive Developed rheological model Creep failure Finite element |
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