Identification in multiscale thermoelastic problems

• Autorzy: Długosz A. , Burczyński T.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with the identification in multiscale analysis of structures under thermal and mechanical loads. A two-scale model of porous materials is examined. Direct thermoelastic analyses with representative volume element (RVE) and finite element method (FEM) are taken into account. Identification of material constants of the microstructure and identification of the shape of the voids in the microstructure are considered. Identification functional is formulated on the basis of information obtained from measurements in mechanical and thermal fields. Evolutionary algorithm is used for the identification as the optimization technique. Numerical examples of identification for porous aluminum models are enclosed.

Słowa kluczowe

EN

multiscale modeling; numerical homogenization; thermoelasticity; evolutionary algorithms; identification; coupled problems; finite element method

PL

modelowanie wielkoskalowe; homogenizacja numeryczna; termosprężystość; algorytmy ewolucyjne; identyfikacja; problemy sprzężone; metoda elementów skończonych

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Methods in Engineering and Science
• Rocznik: 2013
• Tom: Vol. 20, no. 4
• Strony: 325--336
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Długosz A.

• Institute of Computational and Mechanical Engineering Faculty of Mechanical Engineering, Silesian University of Technology Konarskiego 18A, 44-100 Gliwice, Poland

autor

Burczyński T.

• Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5B, 02-106 Warszawa, Poland

Bibliografia

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