Efficient identification of material parameters based on experiments providing full-field kinematics
- Performing predictive and accurate simulations of anisotropic, nonlinear materials requires not only to construct an appropriate constitutive model describing the mechanical behavior, but also to devise a methodology which enables a quantitative identification of the material parameters. Nowadays, full-field measurements of displacements and strains are considered as effective tool for material characterization. In the scope of this work, first, the material model is reformulated such that the parameters appear linear in the constitutive equations. Second, the full-field kinematics are directly inserted into the discretized equilibrium equation. This enables the definition of a quadratic objective function in terms of differences of discrete internal and external forces. Third, one single inhomogeneous experimental setup is designed to excite all deformation modes in the material model.
| Author: | Lubna MakhoolORCiDGND, Daniel BalzaniORCiDGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-110063 |
| DOI: | https://doi.org/10.1002/pamm.202000168 |
| Parent Title (English): | Proceedings in applied mathematics & mechanics |
| Publisher: | Wiley |
| Place of publication: | Weinheim |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2024/03/07 |
| Date of first Publication: | 2021/01/25 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Volume: | 20 |
| Issue: | 1, Artikel e202000168 |
| First Page: | e202000168-1 |
| Last Page: | e202000168-3 |
| Note: | Dieser Beitrag ist auf Grund des DEAL-Wiley-Vertrages frei zugänglich. |
| Institutes/Facilities: | Lehrstuhl für Kontinuumsmechanik |
| Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Ingenieurbau, Umwelttechnik |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Bau- und Umweltingenieurwissenschaften |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
