caa a22 4500 445361956 CHVBK 20180317142917.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11071-010-9929-6 doi (NATIONALLICENCE)springer-10.1007/s11071-010-9929-6 A nonlinear visco-elastoplastic impact model andthecoefficient of restitution [Elektronische Daten] [Ahmet Yigit, Andreas Christoforou, Majed Majeed] A visco-elastoplastic model for the impact between a compact body and a composite target is presented. The model is a combination of a nonlinear contact law that includes energy loss due to plastic deformation and a viscous element that accounts for energy losses due to wave propagation and/or damping. The governing nonlinear equations are solved numerically to obtain the response. A piecewise linear version of the model is also presented, which facilitates analytical solution. The model predictions are compared to those of the well-known and commonly used Hunt-Crossley model. The effects of the various impact parameters, such as impactor mass, velocity, plasticity, and damping, on the impact response and coefficient of restitution are investigated. The model appears to be suitable for a wide range of impact situations, with parameters that are well defined and easily calculated or measured. Furthermore, the resulting coefficient of restitution is shown to be a function of impact velocity and damping, as confirmed by published experimental data. Springer Science+Business Media B.V., 2011 Impact nationallicence Nonlinear nationallicence Visco-elastoplastic contact nationallicence Coefficient ofrestitution nationallicence Yigit Ahmet Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut Christoforou Andreas Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut Majeed Majed Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut Nonlinear Dynamics Springer Netherlands 66/4(2011-12-01), 509-521 0924-090X 66:4<509 2011 66 11071 https://doi.org/10.1007/s11071-010-9929-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11071-010-9929-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yigit Ahmet Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut NATIONALLICENCE 700 1- Christoforou Andreas Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut NATIONALLICENCE 700 1- Majeed Majed Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait aut NATIONALLICENCE 773 0- Nonlinear Dynamics Springer Netherlands 66/4(2011-12-01), 509-521 0924-090X 66:4<509 2011 66 11071 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer