Shock Attenuation Properties of Long Pile Synthetic Turf by Using Multi-intensity Multi-area Impact Test

The purpose of this study is to investigate the shock attenuation properties of long pile synthetic turf. To investigate these properties using a modeling and simulation method, an appropriate model based on reliable data and a precise identification method is required. In previous studies, unstable data were often observed because uneven top yarns had sprouted from the infill material. Therefore, the properties of the infill part, buried yarns and infill materials should be considered first, because sprouted yarn causes unstable shock attenuation. For this reason, special construction specimens with different hardness levels and which had almost no sprouted yarn were prepared, and multi-intensity multi-area impact tests and parameter identification were performed for each specimen. The results show that stable data could be acquired for parameter identification, and the findings indicate the applicability of the modeling and simulation method for evaluating the shock attenuation properties of long pile synthetic turf.