Using constitutive equation gap method for identification of elastic material parameters: Technical insights and illustrations
Type
ArticleAuthors
Florentin, ÉricLubineau, Gilles

KAUST Department
Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2011-08-09Online Publication Date
2011-08-09Print Publication Date
2011-11Permanent link to this record
http://hdl.handle.net/10754/561837
Metadata
Show full item recordAbstract
The constitutive equation gap method (CEGM) is a well-known concept which, until now, has been used mainly for the verification of finite element simulations. Recently, CEGM-based functional has been proposed to identify local elastic parameters based on experimental full-field measurement. From a technical point of view, this approach requires to quickly describe a space of statically admissible stress fields. We present here the technical insights, inspired from previous works in verification, that leads to the construction of such a space. Then, the identification strategy is implemented and the obtained results are compared with the actual material parameters for numerically generated benchmarks. The quality of the identification technique is demonstrated that makes it a valuable tool for interactive design as a way to validate local material properties. © 2011 Springer-Verlag.Citation
Florentin, E., & Lubineau, G. (2011). Using constitutive equation gap method for identification of elastic material parameters: technical insights and illustrations. International Journal on Interactive Design and Manufacturing (IJIDeM), 5(4), 227–234. doi:10.1007/s12008-011-0129-5Publisher
Springer Natureae974a485f413a2113503eed53cd6c53
10.1007/s12008-011-0129-5