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STUDY ON THE RESPONSE TO LOW-VELOCITY IMPACT OF A COMPOSITE PLATE IMPROVED BY SHAPE MEMORY ALLOY
Authors:Ying Wu  Yongdong Wu  Yuanxun Wang  Weifang Zhong
Affiliation:1. Airport College, Civil Aviation University of China, Tianjin 300300, China;2. Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China;1. CIIDIT, UANL, Parque PIIT, Km. 10 autopista al Aeropuerto Internacional de Monterrey, Apodaca, N. L., CP 66600, México;2. FIME, UANL, Ciudad Universitaria, San Nicolás de los Garza, N. L., CP 66451, México;3. Universidade Federal de Campina Grande, Aprigio Veloso 882-Bodocongó, Campina Grande, Paraíba, CP 10069, Brasil;4. Universidade Federal de Pernambuco, Av. Acadêmico Hélio Ramos s/n, Cidade Universitaria, Recife-PE, Brasil;1. Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Tehran 19991-43344, Iran;2. Center of Excellence in Smart Structures and Dynamical Systems, Iran;1. Enzyme Engineering and Microbiology Laboratory, Sfax-University, National School of Engineering of Sfax (ENIS), BP 1173-3038 Sfax, Tunisia;2. Centre de Recherches sur les Macromolécules Végétales, C.N.R.S., and Université Joseph Fourier, BP 53 Grenoble cedex 9 38041, France;1. Department of Mechanical Engineering, R L Jalappa Institute of Technology, Bangalore R, 561203, India;2. Department of Mechanical Engineering, Bangalore Institute of Technology, Bangalore, 560004, India;3. Department of Mechanical and Manufacturing Engineering, M S Ramaiah University of Applied Sciences, Bangalur, 560058, India
Abstract:Improvement from the pseudo-elastic effect of shape memory alloy (SMA) on the low-velocity impact (LVI) resistance of a composite plate is investigated by the finite element method (FEM).The stiffness matrix of the dynamic finite element equation is established step by step and the martensite fraction is obtained at each time step.The direct Newmark integration method is employed in solving the dynamic finite element equation,while the impact contact force is determined using the modified Hertz's law.It is found that SMA can effectively improve the performance of a composite structure subjected to low-velocity impact.Numerical results show that the deflection of a SMA-hybrid composite plate has been reduced approximately by thirty percent when the volume fraction of the embedded SMA reaches 0.3.
Keywords:shape memory alloy  composite plate  low-velocity impact  FEM
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