Blucher Mechanical Engineering Proceedings

Maio 2014, vol.1, num.1 - 10th World Congress on Computational Mechanics
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ASPECTS OF IDENTIFICATION OF ELASTIC-PLASTIC PARAMETERS USING HEURISTIC ALGORITHMS

ASPECTS OF IDENTIFICATION OF ELASTIC-PLASTIC PARAMETERS USING HEURISTIC ALGORITHMS

Jr, M. Vaz; Cardoso, E. L.

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The intense research in the development of new constitutive models has faced the challenge of devising strategies to determine the corresponding material parameters. The literature has shown a steady growth in application of parameter identification based on optimization techniques to a wide range of engineering problems. Within this framework, in recent years, parameter identification schemes using heuristic approaches have been proposed as possible alternatives to classical identification procedures mainly due to their potential ability to avoid local minima, insensitivity to the order of magnitude of parameters and easy parallelisation. The present work shows that Particle Swarm Optimization, as an example of such methods, can also be successfully applied to identification of inelastic parameters and presents remarkable characteristics when compared to Genetic Algorithms.

The intense research in the development of new constitutive models has faced the challenge of devising strategies to determine the corresponding material parameters. The literature has shown a steady growth in application of parameter identification based on optimization techniques to a wide range of engineering problems. Within this framework, in recent years, parameter identification schemes using heuristic approaches have been proposed as possible alternatives to classical identification procedures mainly due to their potential ability to avoid local minima, insensitivity to the order of magnitude of parameters and easy parallelisation. The present work shows that Particle Swarm Optimization, as an example of such methods, can also be successfully applied to identification of inelastic parameters and presents remarkable characteristics when compared to Genetic Algorithms.

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DOI: 10.5151/meceng-wccm2012-16705

Referências bibliográficas
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Como citar:

Jr, M. Vaz; Cardoso, E. L.; "ASPECTS OF IDENTIFICATION OF ELASTIC-PLASTIC PARAMETERS USING HEURISTIC ALGORITHMS", p-239-253. In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 23580828, DOI 10.5151/meceng-wccm2012-16705

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