A finite strain contact model for mixed lubricated surfaces in forming processes |
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| Authors: | Mariela Luege Antonio Orlando Johann Sienz |
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| Institution: | 1. CONICET, Instituto de Estructuras, Universidad Nacional de Tucumán, Av. Independencia 1800, 4000 San Miguel de Tucumán, Tucumán, Argentina;2. Instituto de Estructuras & Departamento de Mecánica, Universidad Nacional de Tucumán, Av. Independencia 1800, 4000 San Miguel de Tucumán, Tucumán, Argentina;3. College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK |
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| Abstract: | For an accurate simulation of forming processes, it is of paramount importance to model the different lubrication regimes that can develop at the contact interface. These might vary from zone to zone of the forming piece, and from one regime to another, resulting in forces of different nature and magnitude. In these cases, the use of the classical Coulomb friction law will be clearly not sufficient to capture, in a suitable manner, the variety of forces applied on the forming piece. |
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| Keywords: | Stribeck curve Large deformations Explicit finite element method Return mapping algorithm Contact interface constitutive modelling Hydroforming |
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