A hyperelastic-thermoviscoplastic constitutive model for semi-crystalline polymers: Application to PEEK under dynamic loading conditions
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- 作者：D. Garcia-Gonzalez ; danigarc@ing.uc3m.es" class="auth_mail" title="E-mail the corresponding author ; R. Zaera ; A. Arias
- 关键词：Semi-crystalline polymers ; High strain rate ; Temperature dependence ; Large deformation ; PEEK
- 刊名：International Journal of Plasticity
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：88
- 期：Complete
- 页码：27-52
- 全文大小：2711 K
文摘
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A hyperelastic-viscoplastic model for semi-crystalline polymers is developed.
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Model includes thermo-mechanical coupling, temperature and rate dependencies.
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Model implemented in a FE code is applied to study polyether-ether-ketone (PEEK).
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Two dynamic problems were analyzed: low velocity impact test and dynamic necking.
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Mechanical behavior under different thermal and strain rate conditions is analyzed.