Open AccessPhenomenological approach to the determination of the stress state of the indicator chart for plasticity
Author(s) -
A.V. Grushko
Publication year - 2013
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-68146
Subject(s) - plasticity , chart , odds , stress (linguistics) , exponential function , mathematics , diagram , function (biology) , principal (computer security) , statistics , computer science , mathematical analysis , thermodynamics , physics , logistic regression , linguistics , philosophy , evolutionary biology , biology , operating system
We propose a parameter state of stress as the sum of the principal stresses relative to the odds of their influence. Influence coefficients are mechanically-mi material properties. Plasticity chart with this indicator is proposed to approximate the exponential function. Checking for different materials showed sufficient proximity of the experimental points to a diagram of plasticity. Recommendations are given for determining the coefficients of arbitrary types of tests. The minimum number of tests - 4.