Abstract
The present study is concerned with the nonlinear dynamic behaviors of fiber metal laminated (FML) beams subjected to moving loads in thermal environments. Based on von Kármán geometric nonlinear theory and Euler–Bernoulli beam hypothesis, the nonlinear equations of motion for the fiber-metal laminated beams under moving loads are derived by using Hamilton’s principle. Galerkin method and Newmark method are employed to solve the dynamic responses of FML beam numerically. The dynamic responses at the midspan of the FML beam are obtained for various load velocity and temperature rise and the outcome results have been compared to the results with those obtained from linear solution. The influences of temperature, geometric nonlinearity, material parameters and velocity of the moving load on the dynamic responses of fiber-metal laminated beams are investigated. Numerical results indicate that the above-mentioned effects play a very important role on the dynamic responses of the beam.
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