Multiscale Shoe-Floor Friction Model Predicts Impact of Shoe-Floor-Angle on Utilized Coefficient of Friction During Slipping

Details

• Personal Author:
  Beschorner KE ; Moghaddam SRM ; Beschorner KE ; Moghaddam SRM
• Description:
  According to the Centers for Disease Control and Prevention, falls are responsible for an annual cost of $170 billion in the United States. Approximately half of falls are initiated by a slipping event. Likelihood of a slip is increased when the available coefficient of friction (ACOF) between shoe and flooring is less than the required coefficient of friction to sustain normal gait on a slippery surface. Another important biomechanical factor in slips is the utilized coefficient of friction, COFU, which is the amount of coefficient of friction that is utilized during a slip. The COFU is limited by both the biomechanical requirements of gait and the amount of friction available at that moment during a slip. In the case where the foot is slipping, it can be assumed that the ACOF is the limiting factor and therefore COFU reflects the ACOF between the shoe and floor at that moment. Previous research by our group has revealed the potential for multiscale computational models, which include microscopic asperity level and macroscopic tread level effects, to predict ACOF. However, this multiscale model has not been used to understand the impact of slipping biomechanics on the COFU during a slip. Furthermore, previous research has established that increased shoe-floor angle is associated with an increased slip risk, however the mechanism responsible for this phenomenon remains unclear. This study aims to use a multiscale computational shoe-floor friction model to predict the impact of shoe angle on ACOF and to compare predicted ACOF values with experimentally-collected COFU during human slipping trials. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accidents Biomechanical Phenomena Occupational Health Risk Assessment Safety
• Keywords:
  Biomechanics Floors Footwear Injury Prevention Models Risk Management Slips, Trips, And Falls STF Walking Surfaces
• Publisher:
  American Society of Biomechanics
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary ; Abstract or Summary
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Pages in Document:
  234-235
• NIOSHTIC Number:
  nn:20052350
• Citation:
  Proceedings of the 40th Annual Meeting of the American Society of Biomechanics, August 2-5, 2016, Raleigh, North Carolina. Newark, DE: American Society of Biomechanics, 2016 Aug; :234-235
• Email:
  sem162@pitt.edu
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Pittsburgh at Pittsburgh
• Peer Reviewed:
  False
• Start Date:
  20100801
• Source Full Name:
  Proceedings of the 40th Annual Meeting of the American Society of Biomechanics, August 2-5, 2016, Raleigh, North Carolina
• End Date:
  20140731
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1865ed0083b453f066ce97dffe742a59ba4677be54c2919e87da7520133b2b65245fe0f61563a8ecff631a6c7ce6b110deea9c7d5a5e18dfdc622b8cd2818e18
• Download URL:
  https://stacks.cdc.gov/view/cdc/211893/cdc_211893_DS1.pdf
• File Type:
  [PDF - 175.40 KB ]