Ball behavior simulation in impact of curve and non-spinning kicks using a finite element analysis

本研究建立了足部和足球的有限元模型，考察了影响曲线球踢球行为的因素。通过将有限元分析结果与试验结果进行比较，对模型进行了验证。利用有限元模型对球体的行为进行了模拟。仿真结果表明：球的速度在很大程度上受撞击前的足部速度的影响，但几乎不受鞋面的杨氏模数和摩擦系数的影响。球的旋转受撞击前瞬间的足部速度和摩擦系数的影响，但这些因素没有显著影响。

This study constructed finite element models of the foot and soccer ball, and examined the factors affecting the ball behavior in curve kick. The models were validated by comparing the results of the finite element analysis to those of the experiment. Simulations of the ball behavior were conducted using the finite element models. The simulation results indicated the following. The ball velocity is largely affected by the foot velocity immediately before impact but barely affected by the Young's modulus of the shoe upper and the coefficient of friction. The ball rotation is affected by the foot velocity immediately before impact and the coefficient of friction; however, these factors had no significant effect.