0105 Dynamic Behavior of an Elastic Spherical Shell Subjected to Impact
Details
Many researchers have studied the impact phenomenon in ball games, such as golf, tennis, baseball, soccer and so on. Although it is very important to understand the dynamic behavior of a ball on the impact phenomenon, the sufficient theoretical understanding of the behavior has not been obtained. In this paper, normal impact of hollow balls is theoretically analysed and the dynamic response of hollow balls is derived as an axisymmetric motion of an elastic spherical shell by using modal expansion method, where effects of area applied by impact force are took into account. The modal distribution of mechanical energies resulted by the work of impact force are discussed.
