Effectiveness of algorithms for determining stresses and plastic deformations in numerical modeling of processes of thermomechanical loading of structural members

Autor: K. N. Rudakov
Rok vydání: 1992
Předmět:
Zdroj: Strength of Materials. 24:543-548
ISSN: 1573-9325
0039-2316
DOI: 10.1007/bf00773125
Popis: The conditions of constructing effective numerical algorithms for calculating stresses and plastic deformations for a number of widely used plasticity equations are analyzed. An iteration-free method is used for taking into account temperature changes in the moduli of elasticity when formulating the boundary-value problem of thermoplasticity in increments. A method is proposed for eliminating the shortcomings of the power approximation of stress-strain diagrams of materials, which enables preserving the available databank of approximation constants.
Databáze: OpenAIRE