Nonlinear dynamic response of functionally graded materials circular plates subject to low-velocity impact:
作者： Hong-Liang Dai , Zhi-Yang Guo , Lei Yang
关键词: Contact force 、 Mathematical analysis 、 Iterative method 、 Geometry 、 Materials science 、 Deflection (engineering) 、 Nonlinear system 、 Equilibrium equation 、 Orthotropic material 、 Composite material 、 Time domain 、 Newmark-beta method
摘要: Based on the theory of first-order shear deformation, a new set equilibrium equations is developed by principle Hamilton. Using Giannakopoulos’ contact model, expressions force and central deflection for functionally graded materials circular plate are obtained. By using orthotropic collocation point method Newmark method, unknown variable functions discreted in space domain time domain, whole problem solved iterative synthetically. Numerical results show that material compositions, geometrical parameters initial velocity striking ball have great effects nonlinear dynamic response plate.
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