With the innovation of materials, many producers verify their golf heads. To improve the energy transmission and to keep stability while batting, the researcher tried to design golf head with a composite material and enlarge sweet spot zone. In addition, the researcher utilized the CAD software to construct and analyze data. He also applied the finite element of LS-DYNA software to simulate the impact question of a golf club head. Let’s understand the change of geometry, impact effects and stresses of golf head by modifying the thickness of head.
From the result of simulation, the CFRP impact face of a golf head has better velocity of a golf ball after impact than the Ti impact face. When the CFRP thickness of an impact face is 2.4~ 2.6 mm and the initial velocity is 45 m/s, the speed of the ball is 68.4~67.8 m/s and the angular velocity is about 2860~2570 rpm after impact. In a vertical direction, the zone of sweet spot is about –30~25mm distance from the center of golf head face, in horizontal direction about -15~25mm. In the same basis of ball speed, when the face of golf head is CFRP, the zone of sweet spot will be wider than the Ti face. When the impact velocity is 55 m/s, the thickness of face about 2.6~ 2.8 mm is better, in 35 m/s, the thickness of face about 2.2~ 2.4mm is also better.