U-drawing of Fortiform 1050 third generation steels. Numerical and experimental results

Elasto-plastic behavior of the third generation Fortiform 1050 steel has been analysed using cyclic tension-compression tests. At the same time, the pseudo elastic modulus evolution with plastic strain was analysed using cyclic loading and unloading tests. From the experiments, it was found that the...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 896; no. 1; pp. 12118 - 12125
Main Authors de Argandoña, E. Saenz, Galdos, L., Mendiguren, J., Otero, I., Mugarra, E.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.2017
Subjects
Compression tests
Contact pressure
Cyclic loads
Mathematical models
Modulus of elasticity
Numerical prediction
Parameter identification
Physics
Plastic deformation
Pressure dependence
Springback
Strain analysis
Tooling
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Summary:Elasto-plastic behavior of the third generation Fortiform 1050 steel has been analysed using cyclic tension-compression tests. At the same time, the pseudo elastic modulus evolution with plastic strain was analysed using cyclic loading and unloading tests. From the experiments, it was found that the cyclic behavior of the steel is strongly kinematic and elastic modulus decrease with plastic strain is relevant for numerical modelling. In order to numerically analyse a U-Drawing process, strip drawing tests have been carried out at different contact pressures and Filzek model has been used to fit the experimental data and implement a pressure dependent friction law in Autoform software. Finally, numerical predictions of springback have been compared with the experimentally ones obtained using a sensorized U-Drawing tooling. Different material and contact models have been examined and most influencing parameters have been identified to model the forming of these new steels.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/896/1/012118