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http://dx.doi.org/10.5762/KAIS.2011.12.3.1078

Development of Measurement Device for Bending Stiffness of Footwear  

Lee, Jong-Nyun (Division of Information System Engineering, Dongseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.3, 2011 , pp. 1078-1084 More about this Journal
Abstract
In design of sport footwear, bending stiffness of its toe part is an important factor though it can be hardly measured. This paper introduces a device for measuring the bending stiffness. The device is simply designed with aluminum frames, one AC motor, two load-cells, one encoder and control hardwares. The mechanism measuring the bending moment of a shoe is described. Then, it was used to observe how the midsole material and design of a sports shoe affect on its bending stiffness. For the experiments, various specimens prepared, where each midsole of the specimens is different in terms of material, thickness and hardness. With those specimens, experiments were performed by using the device and then the bending stiffness was computed by applying the least square curve fitting after the bending moment data were measured. The specimen with Poly-urethane(PU) midsole has the higher bending stiffness than the one with Phylon(PH) midsole, and the midsole thickness affects more on the bending stiffness than the midsole hardness. Based on those results, it can be concluded that the measurement device can provide consistent bending stiffness data to sports footwear and the bending stiffness of a footwear measured by the developed device can be used as a major parameter in the footwear design.
Keywords
Bending stiffness; Bending moment; Footwear; Midsole; Load cell; Hardness;
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Times Cited By KSCI : 1  (Citation Analysis)
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