Finite Element Model of an Impact on a Palmar Pad from a Snowboard Wrist Protector

Newton-Mann, C, Winwood, K, Driscoll, H, Hamilton, N and Allen, TB (2018) Finite Element Model of an Impact on a Palmar Pad from a Snowboard Wrist Protector. In: 12th Conference of the International Sports Engineering Association, 26 March 2018 - 29 March 2018, Queensland, Australia.

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Abstract

Wrist injuries are the most common types of injury in snowboarding. Protectors can reduce injury risk by limiting wrist hyperextension and attenuating impact forces. There are a range of wrist protector concepts available, but it is unclear if any particular design is more effective. The aim of this study was to develop and validate a finite element model of an impact on the palmar pad from a protector. Pad material from a protector was characterised to obtain stress vs strain data, and determine whether it was rate dependent. Material data was implemented into a finite element model to predict impact behavior at 2.5 J. Four material models were investigated, with an Ogden model paired with a Prony series providing the best agreement to experimental data. Future work will build a model of a complete protector for predicting the protective levels of these products.