A31 ロングパイル人工芝の衝撃緩衝性能を正しく評価するための新たなテストの開発(シューズ・サーフェス)

概要

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Long pile artificial turf (3G turf) is becoming a popular sports surface and its "Shock Absorbency" has been approved by the conventional DIN test. However, it has been suggested that the conventional test do not reflect actual loading caused by human sports action. This study aims to re-examine how much the current, standard DIN test is valid to evaluate the shock absorbency of the 3G turf and to establish a new testing procedure precisely reflects the acute human load. The conventional DIN test was found to be inappropriate to evaluate the shock absorbency of high loading condition like hard landing by human (from 50cm height). In contrast, the newly developed testing rig succeeded in reproducing such high loading, in which the difference of shock attenuation property between the 3G turfs was clearly illustrated. The need of high loading test using an alternative testing procedure was highlighted.
2007-11-13