Français
4. Model calibration
Model calibration, or the identification of model parameters, is a very important step in achieving predictive results. In the past, a single tensile test was sufficient to identify the parameters of a damage model, but we now realize that this is not enough, as it only reflects damage for a very specific stress state. What's more, the use of local observables (stricture measurements, displacement field measurements by image correlation) are very useful as a complement to global observables such as the force-displacement curve. In the first section, we'll look at how to vary test types and specimen geometries to cover the most varied and representative stress states possible. We will then present the identification methodologies associated with the different families of damage criteria/models.
4.1 Characterization...
The Ultimate Scientific and Technical Reference
This article is included in
Metal forming and foundry
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Model calibration
Application examples for forming processes
Bibliography
Events
ICF – International Conference on Fracture
ECF – European Conference on Fracture
CFRAC – Conference on Computational Modeling of Fracture and Failure of Materials and Structures
Numiform – International Conference on Numerical Methods in Industrial Forming Processes
Esaform – International ESAFORM Conference on Material Forming...
International scientific journals
IJFO – International Journal of Material Forming
JMPT – Journal of Materials Processing Technology
EFM – Engineering Fracture Mechanics
IJDM – International Journal of Damage Mechanics
The Ultimate Scientific and Technical Reference
