Modeling of induced flow anisotropy and its application to sheet metal forming [Elektronische Ressource] / von Jian Wang

Modeling of induced ow anisotropyand its application to sheet metal formingVon der Fakultat¤ Maschinenbauder Universitat¤ Dortmundzur Erlangung des Grades einesDoktor-Ingenieurs(Dr.-Ing.)genehmigte DissertationvonJian WangDortmund 2006ContentsSummary iii1 Modeling and simulation of induced anisotropy in metals 11.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Basic framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.3 Internal variables as structure tensors . . . . . . . . . . . . . . . . . . . . . . . 41.4 Application to metal inelasticity with hardening . . . . . . . . . . . . . . . . . 62 Some numerical aspects of sheet metal forming and springback simulation 132.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.2 Summary of material model . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.3 Algorithmic formulation of the material model . . . . . . . . . . . . . . . . . . 162.4 Shell element formulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.5 Contact and friction modeling . . . . . . . . . . . . . . . . . . . . . . . . . . 202.6 Convergence behavior and numerical integration . . . . . . . . . . . . . . . . . 222.7 Structural, process and boundary conditions . . . . . . . . . . . . . . . . . . . 282.8 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .