Length scale dependence in elastomers - comparison of indentation experiments with numerical simulations
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- 作者：Nitin Garg ; Chung-Souk Han ; chan1@uwyo.edu" class="auth_mail" title="E-mail the corresponding author ; Farid Alisafaei1 ; alisafae@seas.upenn.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Polymers ; Nanoindentation ; Length scale dependent deformation ; Finite elements
- 刊名：Polymer
- 出版年：2016
- 出版时间：19 August 2016
- 年：2016
- 卷：98
- 期：Complete
- 页码：201-209
- 全文大小：1740 K
文摘
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Indentation size effects in elastomers are analyzed with a couple stress theory implemented in a finite element (FE) approach.
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The FE simulations were performed for both conical indenter tips at various indentation depths and spherical indenter tips of various tip radii.
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Good agreement has been found in experiments and simulations corroborating the notion of higher gradient dependent deformation in elastomers.