STP1073

    Laboratory Measurements of Impact Absorption on Turfgrass and Soil Surfaces

    Published: Jan 1990


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    Abstract

    Soil and turfgrass surfaces prepared in wooden boxes were evaluated in the laboratory for peak deceleration and depth of penetration using Procedure A of ANSI/ASTM Test for Shock Absorbing Properties of Playing Surface Systems and Materials (F 355-86). A 9.1-kg missile with a flat surface (129 cm2) was dropped three times from a height of 61 cm. The peak deceleration was greater and the penetration depth less with a soil depth of 7.5 cm than with depths of 15 cm or greater. This effect was attributed to the box bottom and heavy anvil on which the boxes were placed for testing. Peak deceleration was lower and penetration depth greater with turf cover than with bare soil and when soil was core cultivated. Each successive impact altered the results because of soil compaction. The limitations of this method were the small surface area (20 by 47 cm) available for testing (only three impact locations per box) and the lifting and transporting of soil-filled boxes.

    Keywords:

    playing fields, impact absorption, peak deceleration, penetration depth, turf-grass, soil properties


    Author Information:

    Henderson, RL
    Graduate research assistant and professor of soil science, Pennsylvania State University, University Park, PA

    Waddington, DV
    Graduate research assistant and professor of soil science, Pennsylvania State University, University Park, PA

    Morehouse, CA
    Professor emeritus of physical education, Pennsylvania State University, University Park, PA


    Paper ID: STP25356S

    Committee/Subcommittee: F08.52

    DOI: 10.1520/STP25356S


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