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A goal-oriented filtering technique of field measurements for parameters identification of material model

​G. Lubineau (2009) A goal-oriented filtering technique of field measurements for parameters identification of material model. Computational Mechanics, v.44(5), pp. 591-603.
G. Lubineau
filtering technique of field measurements for parameters identification of material model. Computational Mechanics
2009
​The post-processing of experiments with nonuniform fields is still a challenge: the information is often much richer, but its interpretation for identification purposes is not straightforward. However, this is a very promising field of development because it would pave the way for the robust identification of multiple material parameters using only a small number of experiments. This paper presents a goal-oriented filtering technique in which data are combined into new output fields which are strongly correlated with specific quantities of interest (the material parameters to be identified). Thus, this combination, which is nonuniform in space, constitutes a filter of the experimental outputs, whose relevance is quantified by a quality function based on global variance analysis. Then, this filter is optimized using genetic algorithms