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2015 | OriginalPaper | Chapter

Ratchetting of Snake Skin: Experiments and Viscoelastic-Plastic Constitutive Model

Authors : Yilin Zhu, Guozheng Kang

Published in: Inelastic Behavior of Materials and Structures Under Monotonic and Cyclic Loading

Publisher: Springer International Publishing

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Abstract

In this paper, the cyclic deformation of snake skin is experimentally observed by the in vitro tests under uniaxial cyclic loading conditions and at room temperature for the first time. The effect of loading level on the cyclic deformation and the anisotropic deformation of snake skin are investigated, respectively. The results show that ratchetting (i.e., a cyclic accumulation of strain) occurs during the cyclic tension-tension tests of snake skin, and depends greatly on the loading orientations and levels. Based on the experimental results of uniaxial ratchetting, a simplified version of the finite viscoelastic-plastic model (Zhu et al. in J Biomech 47:996–1003, 2014) for soft biological tissues is obtained. The comparison shows that the simulated results are in qualitative agreement with the experimental ones.

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Title: Ratchetting of Snake Skin: Experiments and Viscoelastic-Plastic Constitutive Model
Authors: Yilin Zhu
Guozheng Kang
Publisher: Springer International Publishing
Book: Inelastic Behavior of Materials and Structures Under Monotonic and Cyclic Loading
Print ISBN: 978-3-319-14659-1

Electronic ISBN: 978-3-319-14660-7

Copyright Year: 2015
DOI: https://doi.org/10.1007/978-3-319-14660-7_12

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