Struktura obiektu

Autor:

Petureau, Louis ; Doumalin, P. ; Bremand, Fabrice

Współtwórca:

Jurczak, Paweł - red.

Tytuł:

Identification of local elastic parameters in heterogeneous materials using a parallelized femu method

Tytuł publikacji grupowej:

IJAME, volume 24 (2019)

Temat i słowa kluczowe:

identification ; elasticity ; heterogeneous material ; genetic algorithms ; parallel computations

Abstract:

In this work, we explore the possibilities of the widespread Finite Element Model Updating method (FEMU) in order to identify the local elastic mechanical properties in heterogeneous materials. The objective function is defined as a quadratic error of the discrepancy between measured fields and simulated ones. ; We compare two different formulations of the function, one based on the displacement fields and one based on the strain fields. We use a genetic algorithm in order to minimize these functions. We prove that the strain functional associated with the genetic algorithm is the best combination. We then improve the implementation of the method by parallelizing the algorithm in order to reduce the computation cost. We validate the approach with simulated cases in 2D.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2019

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.2478/ijame-2019-0054

Strony:

140-156

Źródło:

IJAME, volume 24, number 4 (2019)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

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Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego