Author： Suemasu Hiroshi
Publisher： Taylor & Francis Ltd
ISSN： 1568-5519
Source： Advanced Composite Materials, Vol.5, Iss.1, 1995-01, pp. : 17-33
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Abstract
Impact responses of transversely isotropic circular plates are investigated analytically. A modified Hertzian contact law is incorporated in the analysis to express the interaction between a spherical head impactor and transversely isotropic plates. Transverse shear and geometric nonlinearity are considered. A nondimensional equation of vibration is derived, based on the Lagrange equation of motion. First, the effects of various parameters on the impact behavior are assessed through the nondimensionalized equation. Then, the equation is developed by a finite element technique and solved numerically by the use of Newmark's time integral algorithm. The effect of the mass of the impactor on the global impact response is studied. The results are also compared with static results in order to estimate the significance of dynamic effects.
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