SENSITIVITY ANALYSIS IN THERMO-ELASTIC-PLASTIC PROBLEMS

Autor: Andrzej Sluzalec, Krzysztof Kubicki
Rok vydání: 2002
Předmět:
Zdroj: Journal of Thermal Stresses. 25:705-718
ISSN: 1521-074X
0149-5739
DOI: 10.1080/01495730290074496
Popis: The design sensitivity of a thermo-elastic-plastic system is considered. The continuum approach and resulting finite element formulations are described. Sensitivity is obtained by an incremental load approach for nonlinear response analysis. Kinematic and isotropic hardening in thermo-elasto-plasticity are discussed. The control volume approach is to analyze shape and nonshape design. The direct differentiation method is adopted to obtain the design sensitivity expression for the response variables. Analytical examples demonstrate the developed sensitivity procedure. The design sensitivity formulas are discretized to implement it as a computer program with isoparametric finite elements. Numerical examples are presented to calculate the design sensitivity.
Databáze: OpenAIRE