Low-velocity Impact Response of FML Beams with Considering Plasticity of Metal

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Rashedi, Hossein | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 48450 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Koochakzadeh, Mohammad Ali
Abstract:
In this thesis an analytical model is applied to the dynamic response of fiber-metal laminate beams subjected to low-velocity impact. By using quasi-static consider-tions, a static model is developed using first order shear deformation beam theory and minimum total potential energy. In the next step, this static model is applied to the one degree of freedom non-linear spring-mass system for developing a model to predict dynamic response of low-velocity impact with the inclusion of material plasticity. By new explicit and simple expression, load-deflection curve, velocity-deflection curve, force-time history and deflection-time history can be derived. By using this analytical approach thickness and stacking sequence effects for three case of GLARE 5-2/1 are presented and discussed. In this thesis no failure and delamination will be considered
Keywords:
Low Velocity Impact ; Ritz Method ; Plasticity ; Dynamic Response ; Fiber-metal Laminate Beams ; Impact Resistance

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