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Numerical investigation of nanoindentation of viscoelastic polymer layers and parameters re‐identification
Author(s) -
Chen Zhaoyu,
Diebels Stefan
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110372
Subject(s) - viscoelasticity , nanoindentation , finite element method , materials science , matlab , numerical analysis , structural engineering , computer science , composite material , mathematics , engineering , mathematical analysis , operating system
In the present contribution, we focus on the numerical investigation of nanoindentation of viscoelastic polymer layers using the finite element code ABAQUS®. The time‐dependent behaviour of the viscoelastic layer is modeled with Boltzman hereditary integration based on Prony series. The normal contact between the rigid indenter and the deformable layer are treated numerically as a unilateral non‐penetration constraint problem. The computer‐based numerical optimisation routine is treated by employing the Matrix Laboratory MATLAB® combined with ABAQUS®. The stochastic strategy is used based on principles of biological evolution, i. e. an evolution strategy. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)