Abstract
Recently, hip pads have been developed to prevent the femur fracture by falling for aged persons. It is necessary for hip pads that the material and the structure select and design to realize the higher performance of impact absorption. In this work, an experimental system was made to test the impact absorbing properties of hip pad with cellular cushion and commercial hip pad. Using an artificial femur with composite materials that consist of cortical and cancellous region, impact load was applied to greater trochanter of the femoral model. Impact absorbing performance was evaluated by the impulsive force, collision time and impact strain. As a result, significant differences were not showed about absorbing performance in hip pad with cellular cushion except 12mm thickness.
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