Premium
An Elastic‐Plastic Material Inverse Identification Problem
Author(s) -
Vrbka J.
Publication year - 1988
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.19880680818
Subject(s) - inverse problem , inverse , materials science , cylinder , sensitivity (control systems) , stability (learning theory) , mathematical analysis , function (biology) , mathematics , mechanics , composite material , physics , geometry , computer science , engineering , electronic engineering , machine learning , evolutionary biology , biology
The inverse elastic‐plastic problem based on the theory of small elastic‐plastic deformations for the identification experiment on the thick‐walled cylinder is formulated mathematically. The input parameters are radial and tangential strains measured experimentally. For the solution the numerical one step Runge‐Kutta method is applied. The numerical stability and the sensitivity of the calculated material characteristics depending on the type of approximation function, on the numbers of integration steps and on the accuracy of the measured radial and tangential strains are investigated. The results of the application of the proposed method for a real material — sintered carbide WC‐Co — are presented.