SYMPOSIA PAPER Published: 01 January 1990
STP25356S

Laboratory Measurements of Impact Absorption on Turfgrass and Soil Surfaces

Source

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.

Author Information

Henderson, RL
Pennsylvania State University, University Park, PA
Waddington, DV
Pennsylvania State University, University Park, PA
Morehouse, CA
Pennsylvania State University, University Park, PA
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Details
Developed by Committee: F08
Pages: 127–135
DOI: 10.1520/STP25356S
ISBN-EB: 978-0-8031-5133-8
ISBN-13: 978-0-8031-1296-4