Open Access
ABSTRACT
Inverse Analysis of Viscoelastic Material Properties Considering Time- and Temperature-Dependence of Poisson’s Ratio
Shotaro Taguchi1,*, Satoru Yoneyama2
1-2 Department of Mechanical Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa
252-5258, Japan.
* Corresponding Author: Shotaro Taguchi. Email: .
The International Conference on Computational & Experimental Engineering and Sciences 2021, 23(1), 20-20. https://doi.org/10.32604/icces.2021.08535
Abstract
This study proposes a method for identifying viscoelastic properties
that considers time- and temperature dependence of Poisson's ratio using inverse analysis. In this method, displacement distribution, which are input values of inverse analysis, is measured by digital image correlation [1], and
unknown material properties are determined using the virtual fields method [2]. This method targets plane stress condition and the Poisson's ratio of the
viscoelastic body depends on the time and temperature [3]. This study focuses
on the correspondence law and proposes a method for calculating stresses considering time- and temperature dependence of Poisson's ratio. In-plane
strains are measured and a through-thickness strain is computed by numerical
solution by using the numerical Laplace transformation. The shear and bulk
modulus are identified simultaneously by inverse analysis applying the
proposed method. The effectiveness of the proposed method is demonstrated
by applying to simulation of experiment by finite analysis. Results show that the
stresses can be evaluated from in-plane strains and the material properties are
identified by proposed method even if the Poisson’s ratio exhibits time-and
temperature-dependence.
Keywords
Cite This Article
Taguchi, S., Yoneyama, S. (2021). Inverse Analysis of Viscoelastic Material Properties Considering Time- and Temperature-Dependence of Poisson’s Ratio.
The International Conference on Computational & Experimental Engineering and Sciences, 23(1), 20–20. https://doi.org/10.32604/icces.2021.08535