A Triaxial Failure Diagram to predict the forming limit of 3D sheet metal parts subjected to multiaxial stresses
Visualitza/Obre
10.1088/1742-6596/734/3/032020
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/90452
Tipus de documentText en actes de congrés
Data publicació2016
EditorInstitute of Physics (IOP)
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement 3.0 Espanya
Abstract
Accurate prediction of failure and forming limits is essential when modelling sheet metal forming processes. Since traditional Forming Limit Curves (FLCs) are not valid for materials subjected to triaxial loading, a new failure criterion is proposed in this paper based on the stress triaxility and the effective plastic strain accumulated during the history of material loading. Formability zones are identified inside the proposed Triaxial Failure Diagram (TFD). FLCs may be mapped into the TFD defining a new Triaxial Failure Curve, or it can be defined by triaxial failure experiments. Several TFD examples are validated and constrasted showing acceptable accuracy in the numerical prediction of forming failure/limit of 3D thick sheet parts.
CitacióRastellini, F., Socorro, G., Forgas, A., Oñate, E. A Triaxial Failure Diagram to predict the forming limit of 3D sheet metal parts subjected to multiaxial stresses. A: International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes. "Journal of Physics: Conference Series (vol. 734)". Bristol: Institute of Physics (IOP), 2016, p. 1-7.
ISBN1742-6596
Versió de l'editorhttp://iopscience.iop.org/article/10.1088/1742-6596/734/3/032020
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
19072542.pdf | 1,414Mb | Visualitza/Obre |