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Tensile behavior of glass/epoxy laminates at varying strain rates and temperatures |
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| Authors: | J.M.L. Reis J.L.V. Coelho A.H. Monteiro H.S. da Costa Mattos |
| Affiliation: | 1. Professor, Department of Mechanical Engineering, Sri Sai Ram Engineering College, Chennai, 600044, India;2. Professor, Department of Mechanical Engineering, Saveetha Engineering College, Chennai, 600044, India;3. Assistant professor, Department of Mechanical Engineering,Mailam Engineering College, Mailam,604304, India;1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;2. Department of Astronautic Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China;3. Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin 150001, China;1. Department of Civil Engineering, American University of Sharjah, Sharjah, United Arab Emirates;2. American University of Sharjah, United Arab Emirates;3. Rutgers University, United States |
| Abstract: | In the present work tensile tests at different strain rates and temperatures were performed in glass fiber reinforced polymer (GFRP). It is observed that such kind of composite presents an elasto–viscoplastic behavior – the rate dependency only occurs for loading levels above a given elasticity limit. Strain rate strongly affects the ultimate tensile strength (σu) and the modulus of elasticity is almost insensitive to it while temperature only influences the modulus. Analytical expressions to predict the modulus of elasticity and (σu) as a function of the temperature and strain rate are proposed and compared with experimental data showing a reasonable agreement. |
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