New effective moduli of isotropic viscoelastic composites. Part II. Comparison of approximate calculation with the analytical solution

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Kupriyanov, N.A.^1 ; Simankin, F.A.^1 ; Manabaev, K.K.^1

National Research Tomsk Polytechnic University, 30, Lenina ave., Tomsk

634050, Russia^1

关键词: Approximate algorithms;    Approximate calculations;    Approximate solution;    Numerical calculation;    Stress strain state;    Visco elastic half spaces;    Viscoelastic bodies;    Viscoelastic composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012100/pdf
DOI  :  10.1088/1757-899X/124/1/012100

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A new approximate algorithm for calculating a stress-strain state of viscoelastic bodies is used. The algorithm is based on the derivation of the expressions of time-effective modules. These modules are obtained by iterative changes, compressing the fork of Voigt-Reuss. As an example the analytic solution about the action of a concentrated force on the viscoelastic half-space is compared with the approximate solution. Numerical calculations are performed for a wide range of relaxation characteristics of a viscoelastic half-space. Results of the comparison of stresses and displacements with the analytic solution give coincidence within 3... 15%.