EFFECT OF DAMAGE ON NONLINEAR DYNAMIC PROPERTIES OF VISCOELASTIC RECTANGULAR PLA

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EFFECT OF DAMAGE ON NONLINEAR DYNAMIC PROPERTIES OF VISCOELASTIC RECTANGULAR PLATES

The nonlinear dynamic behaviors of viscoelastic rectangular plates including the damage effects under the action of a transverse periodic load were studied. Using the von Karman equations, Boltzmann superposition principle and continuum damage mechanics, the nonlinear dynamic equations in terms of the mid-plane displacements for the viscoelastic thin plates with damage effect were derived. By adopting the finite difference method and Newmark method, these equations were solved. The results were compared with the available data. In the numerical calculations, the effects of the external loading parameters and geometric dimensions of the plate on the nonlinear dynamic responses of the plate were discussed. Research results show that the nonlinear dynamic response of the structure will change remarkably when the damage effect is considered.水利论文7j8ilKD\.h?

作 者: ZHENG Yu-fang FU Yi-ming  
作者单位:Department of Engineering Mechanics, Hunan University, Changsha 410082, P.R. China 
刊 名:应用数学和力学(英文版)  EI SCI
英文刊名:APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 
年,卷(期):2005 26(3) 
分类号:O345 
关键词:rectangular plate   viscoelasticity   damage effect   geometric nonlinearity  
机标关键词:nonlinear dynamic equationsdamage effectfinite difference methodsuperposition principlenumerical calculationsdynamic responsesdynamic behaviorsdamage mechanics 
基金项目:国家自然科学基金 
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