Abstract
ABSTRACT The purpose of this study was (a) to develop carbon nanotube-based shock absorbers for reducing potentially harmful impact forcesand excessive foot pronation, and (b) to briefly determine how the effects of carbon nanotube-based shock absorbers on biomechanicalvariance during drop landing. A university student(age: 24.0 yrs, height: 176.2 cm, weight: 679.5 N) who has no musculoskeletaldisorder was recruited as the subject. Hardness, specific gravity, tensile strength, elongation, 100% modulus, tear strength, splittearstrength, compression set, resilience, vertical GRF, and loading rate were determined for each material. For each dependent variable, adescriptive statistics was used for different conditions. The property test results showed that tensile strenth, tear strength, split tearstrength, compression set, and resilience in carbon nanotube-based shock absorbers were greater than general Ethylene VinylAcetate(EVA). These indicated that resistance against variable strength in developed carbon nanotube-based shock absorbers weregreater than general EVA. In vertical GRF of CNTC was less than those of EVA during drop landing and loading rate of CNTCwas greater than EVA. It seems that the use of CNT can be a effective way of reducing and controlling shock from impact.Keywords : Carbon Nanotube, Shock Absorber, Mechanical Property Test, Sports Injury
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