Using response surface methodology for modeling and optimizing tensile and impact strength properties of fiber orientated quaternary hybrid nano composite |
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| Affiliation: | 1. Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran;2. Faculty of Mechanical Engineering, Semnan University, Semnan, Iran;3. Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran;4. Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran;1. Sir Lawrence Wackett Aerospace Research Centre, School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia;2. Boeing Research and Technology Australia, 226 Lorimer St (Private Bag 4), Port Melbourne, Victoria 3207, Australia;3. Singapore Institute of Manufacturing Technology (SIMTech), Joining Technology Group, 71 Nanyang Drive, Singapore 638075, Singapore;1. Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Plaza Ferrandiz y Carbonell 1, 03801 Alcoy, Alicante, Spain;2. Departamento de Ingeniería Gráfica, Universitat Politècnica de València (UPV), Plaza Ferrandiz y Carbonell 1, 03801 Alcoy, Alicante, Spain;1. Faculty of Mechanical Engineering, K N Toosi University of Technology, Tehran, Iran;2. Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, P.O. Box: 14155-6455, Tehran, Iran;3. Université de Lorraine, CNRS, IJL, F-88000 Epinal, France;1. Faculty of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran;2. Department of Plastics, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran;3. Faculty of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran;4. Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran;1. Department of Mechanical Engineering, Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran;2. Faculty of Mechanical Engineering, Semnan University, Semnan, Iran;3. Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran;4. Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran;5. Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran |
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| Abstract: | In current study, weight percentage of nano silica and nano clay and also fiber orientation have been chosen as independent variables and the affect of these variables on tensile and izod impact strength of epoxy/glass fiber/SiO2/clay hybrid laminate composite has been investigated. Central composite design (CCD) which is subset of response surface methodology has been employed to present mathematical models as function of physical factors to predict tensile and impact behavior of new mentioned hybrid nano composite and also optimizing mentioned mechanical properties. Totally 20 experiments were designed with 6 replicates at center point. The maximum and minimum value of tensile strength were 450.90 MPa and 158.16 MPa which occurred in design levels 1 and 14 respectively, also the maximum and minimum of izod impact strength were 10.47 kJ/m2 and 2.56 kJ/m2 which occurred in design levels 13 and 14 respectively. The optimization results using optimization part of Minitab software showed that the best tensile strength was obtained 488.53 MPa and occurred in 3.5 wt% of nano silica, 1.1 wt% of nano clay and 9° of fiber orientation and after preparing and testing five samples average value of tensile strength was obtained about 480 MPa. Also the results showed that the best impact strength obtained from software was 11.35 kJ/m2 and occurred in 4.03 wt% of nano clay, 5 wt% of nano silica and 0° of fiber orientation. The optimization results also showed that tensile and impact strength at optimum values improved up to 6.4% and 203.5% compared to level 1 and 14 and 6.02% and 303.6% compared to level 13 and 14 respectively. In addition, the fracture surface morphologies of the quaternary nano composites were investigated by scanning electron microscopy (SEM). |
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| Keywords: | A Glass fibers A Hybrid A Laminates B Mechanical properties Response Surface |
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