106 Shock absorbing properties of long pile synthetic turf by using impact test

Abstract

The purpose of this study is to investigate the shock attenuation properties of long pile synthetic turf filling unit. Two different types of specimens (turf in infill, volume ratio; sand : rubber = 5:5 and 7:3), one type specimen (no turf in infill, volume ratio; sand : rubber = 5:5) and five different areas of test foot were prepared. Multi-intensity multi-area impact tests (20 impact trials with different intensity are performed for each 5 different impact areas) were performed for considering the parameter identification and shock absorbing properties with simulation. As the results, we could not measure in no turf because test foot was buried in infill. But, Stable data were obtained in turf. Adaptation of exponential type nonlinear Voigt model is also possible for the sample of this study. However, identification accuracy was same as the previous study.