Sensitivity analysis and identification of material defects in dynamical systems

Tadeusz Burczyński; Marc Bonnet; Piotr Fedeliński; Marek Nowakowski

doi:10.1080/02329290290031323

Sensitivity analysis and identification of material defects in dynamical systems

Tadeusz Burczyński, Marc Bonnet, Piotr Fedeliński, Marek Nowakowski

Research output: Contribution to journal › Article › peer-review

Abstract

This paper deals with an analytical and computation strategy, based on the adjoint variable approach and boundary integral equation (BIE) formulations, for evaluating void or crack shape sensitivities of objective functionals. Boundary-only expressions for such sensitivities are sought in the context of linear elastodynamics. An evolutionary hybrid algorithm with the gradient mutation is employed for the identification of material defects. Numerical tests of sensitivity expressions and identification of an internal crack and void are presented.

Original language	English
Pages (from-to)	559-574
Number of pages	16
Journal	Systems Analysis Modelling Simulation
Volume	42
Issue number	4
DOIs	https://doi.org/10.1080/02329290290031323
Publication status	Published - 1 Jan 2002
Externally published	Yes

Keywords

Adjoint variable approach
Boundary element method (BEM)
Crack problem
Defect identification
Elastodynamics
Evolutionary hybrid algorithm
Sensitivity analysis

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10.1080/02329290290031323

Cite this

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title = "Sensitivity analysis and identification of material defects in dynamical systems",

abstract = "This paper deals with an analytical and computation strategy, based on the adjoint variable approach and boundary integral equation (BIE) formulations, for evaluating void or crack shape sensitivities of objective functionals. Boundary-only expressions for such sensitivities are sought in the context of linear elastodynamics. An evolutionary hybrid algorithm with the gradient mutation is employed for the identification of material defects. Numerical tests of sensitivity expressions and identification of an internal crack and void are presented.",

keywords = "Adjoint variable approach, Boundary element method (BEM), Crack problem, Defect identification, Elastodynamics, Evolutionary hybrid algorithm, Sensitivity analysis",

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T1 - Sensitivity analysis and identification of material defects in dynamical systems

AU - Burczyński, Tadeusz

AU - Bonnet, Marc

AU - Fedeliński, Piotr

AU - Nowakowski, Marek

PY - 2002/1/1

Y1 - 2002/1/1

N2 - This paper deals with an analytical and computation strategy, based on the adjoint variable approach and boundary integral equation (BIE) formulations, for evaluating void or crack shape sensitivities of objective functionals. Boundary-only expressions for such sensitivities are sought in the context of linear elastodynamics. An evolutionary hybrid algorithm with the gradient mutation is employed for the identification of material defects. Numerical tests of sensitivity expressions and identification of an internal crack and void are presented.

AB - This paper deals with an analytical and computation strategy, based on the adjoint variable approach and boundary integral equation (BIE) formulations, for evaluating void or crack shape sensitivities of objective functionals. Boundary-only expressions for such sensitivities are sought in the context of linear elastodynamics. An evolutionary hybrid algorithm with the gradient mutation is employed for the identification of material defects. Numerical tests of sensitivity expressions and identification of an internal crack and void are presented.

KW - Adjoint variable approach

KW - Boundary element method (BEM)

KW - Crack problem

KW - Defect identification

KW - Elastodynamics

KW - Evolutionary hybrid algorithm

KW - Sensitivity analysis

U2 - 10.1080/02329290290031323

DO - 10.1080/02329290290031323

M3 - Article

AN - SCOPUS:17444382244

SN - 0232-9298

VL - 42

SP - 559

EP - 574

JO - Systems Analysis Modelling Simulation

JF - Systems Analysis Modelling Simulation

IS - 4

ER -

Sensitivity analysis and identification of material defects in dynamical systems

Abstract

Keywords

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