Abstract

In this paper, mechanical properties of thermoplastic elastomers were investigated to expand the applicability of thermoplastic elastomers to the impact load reduction for the sports equipment. The thermoplastic elastomers show both thermoplastic and elastomeric properties. These are expected to apply to the impact load reduction in sports equipment due to good processability and less-smell. In this study, thermoplastic elastomers were applied for monotonic and cyclic tensile loading tests. The thermoplastic elastomer (TPE) materials in this study were newly developed for the specific purpose of impact load reduction. The nonlinear hyperelastic model considering the viscosity and damage model was applied to the tensile loading test results. finite element analysis (FEA) results of TPE specimens with periodic geometric shapes to reduce impact load were investigated.

Highlights

  • In this paper, mechanical properties of thermoplastic elastomers (TPEs) were investigated to expand the applicability of the TPEs to the impact load reduction for the sports equipment

  • The finite element analysis (FEA) of thermoplastic elastomer specimens was conducted to evaluate the applicability of the TPEs to the impact reduction in sports equipment

  • The viscoelastic model with a damage model were applied to the FEA simulation, in order to reproduce the mechanical properties of TPEs

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Summary

Introduction

Mechanical properties of thermoplastic elastomers (TPEs) were investigated to expand the applicability of the TPEs to the impact load reduction for the sports equipment. The finite element analysis (FEA) of thermoplastic elastomer specimens was conducted to evaluate the applicability of the TPEs to the impact reduction in sports equipment. The foaming materials in these sports protectors show higher stiffness due to consolidation under a larger impact load. TPEs show the mechanical properties of both rubber and plastic materials. The design of stiffness and viscous properties of TPEs is possible to adjust under the requirement of higher impact load in sports. Impact load reduction in sports equipment is one of the main expected applications of the TPEs due to having good processability and a reduced smell

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