A44 有限要素法を用いたサッカーのキックのインパクトにおけるボール挙動解析の妥当性(キック・インパクト)

概要

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The objective of this study was to construct finite element models of the simplified foot and soccer ball to simulate the ball behavior in curve kick. A 3D finite element model of the foot was developed using the barefoot and footwear shapes, which were obtained from a 3D laser scanner. A finite element model of the ball consisted of composite shell elements that include a hyperelastic model to define the latex bladder layer and a linearly elastic model to define the outer panels. Five experienced male university soccer players performed curve kicks. The kicking motions were captured three-dimensionally by two high-speed cameras at 2,500 fps. The models were validated by comparing the results of the finite element analysis to those of the experiment. The finite element results of the ball behavior during and immediately after impact were in generally good agreement with experimental ones. The models showed the ability to represent the ball behavior at ball impact.
2010-11-02