The identification of mode-I parameters of a cohesive-zone model for the analysis of adhesive joints is presented. It is based on an experimental–numerical methodology whereby the optimal parameters are obtained as the solution of a nonlinear programming problem. The data set for inverse analysis is provided either by local kinematic data, by global static data, or a combination of the two. Parameter sensitivities are computed via direct differentiation and identification exercises are discussed that show the effectiveness of the procedure and its stability with respect to noise and time–space sampling.

Characterization of a cohesive-zone model describing damage and de-cohesionat bonded interfaces. Sensitivity analysis and mode-I parameter identification

FEDELE, ROBERTO
2010-01-01

Abstract

The identification of mode-I parameters of a cohesive-zone model for the analysis of adhesive joints is presented. It is based on an experimental–numerical methodology whereby the optimal parameters are obtained as the solution of a nonlinear programming problem. The data set for inverse analysis is provided either by local kinematic data, by global static data, or a combination of the two. Parameter sensitivities are computed via direct differentiation and identification exercises are discussed that show the effectiveness of the procedure and its stability with respect to noise and time–space sampling.
Adhesive jointsDamage mechanicsCohesive-zone modelsInterfacesSensitivity analysisInverse problemsParameter identification
Damage mechanics
Cohesive-zone models
Interfaces
Inverse problems
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/570130
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