Abstract
Based on the thermoviscoelastic theory and the classic plate theory, thermoviscoelastic behavior of a circular plate made from high strength low alloy (HSLA) steel material is investigated. Applying the Kirchhoff hypothesis, the nonlinear motion control equations of the circular HSLA steel plate are presented by utilizing the principle of minimum potential energy. The entire problem is solved by utilizing the finite difference method, Newmark method and iterative method. Numerical results show that mechanical loads, boundary conditions, the ratio of thickness to radius, and temperature field have a great influence on thermoviscoelastic behavior of the circular HSLA steel plate.
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