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Identification of Material Parameters for Structural Analyses

W. Brocks1, I. Scheider2
1 Christian Albrecht University Kiel, Germany
2 Helmholtz-Zentrum Geesthacht, Centre for Material and Coastal Research, Germany

Structural Durability & Health Monitoring 2010, 6(3&4), 189-212. https://doi.org/10.3970/sdhm.2010.006.189

Abstract

Material parameters are adjustable coefficients in constitutive equations of the mechanical behaviour. Their identification requires a combined experimental and numerical approach, which results in a generally ill-posed inverse problem. Methods commonly applied in computational mechanics like optimisation and neural networks are addressed, and problems like sensitivity, uniqueness and stability are discussed. The cohesive model for describing ductile tearing is chosen as practical example to substantiate the general considerations.

Keywords

parameter identification, optimisation, evolution strategy, neural network, cohesive model.

Cite This Article

Brocks, W., Scheider, I. (2010). Identification of Material Parameters for Structural Analyses. Structural Durability & Health Monitoring, 6(3&4), 189–212.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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