Changes in under-shoe traction and fluid drainage for progressively worn shoe tread
Authors/Creators
- 1. University of Pittsburgh
- 2. University of Pittsburgh at Johnstown
Description
Slip and fall accidents are a common cause of injuries in the workplace. Slip-resistant footwear offers the potential to reduce the risk of these accidents. However, the efficacy of these shoes is reduced as shoes become worn. This data set provides the key independent and dependent variables from a study to evaluate the changes in traction performance of slip-resistant shoes as they become worn. The traction performance of five shoes were tracked as these shoes were exposed to mechanical wear. The coefficient of friction and under-shoe fluid pressures were measured in their baseline condition and after each worn iterations. During each wear iterations, shoes were mechanically worn at three different angles to simulate the shoe angle progression during the weight-acceptance phase of gait. Coefficient of friction was quantified as the ratio of friction to normal forces. The peak fluid pressure and the fluid force (spatial integral of fluid pressure) were calculated. The worn region size of each shoe was measured. This worn region size was applied to a tapered wedge bearing model to predict film thickness.
Notes
Missing data: Note that the size of the worn region ("Untreaded Length [mm]" and "Untreaded Width [mm]") was calculated using the tread dimensions in the baseline conditions ("Wear Cycle" = 0) and then based on the dimensions of the worn region once a worn region had formed. For trials after the baseline condition but before the development of the worn condition, these tread dimensions were not measured again because they would be identical to the baseline condition. Worn region size was also not measured for "Shoe Code" = A since multiple worn regions formed. Any value calculated from the worn region dimensions ("Film Thickness [um]" and "lambda ratio") were also not calculated. Other null cells reflect missing data from the data set.
Funding provided by: National Institute for Occupational Safety and Health
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000125
Award Number: R01OH010940
Funding provided by: National Institute for Occupational Safety and Health
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000125
Award Number: NIOSH R01OH010940
Funding provided by: National Institute of Arthritis and Musculoskeletal and Skin Diseases
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000069
Award Number: R43AR064111
Funding provided by: National Science Foundation Graduate Research Fellowship Program
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: NSF 16-104
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Additional details
Related works
- Is cited by
- 10.1016/j.apergo.2019.04.014 (DOI)
- 10.1016/j.wear.2019.01.070 (DOI)
- 10.1016/j.triboint.2020.106161 (DOI)