Simulation of Metal Forming Processes by the Finite Element Method (Simop-I): Proceedings of the I. International Workshop Stuttgart, June 3, 1985

ISBN-13: 9783540165927 / Angielski / Miękka / 1986 / 320 str.

Kurt Lange

Opis

The production-costs of formed workpieces are in an increasing extent fixed through the costs for designing and manufacturing the tools. Nowadays, it is possi b 1 e to reduce these redundant tool-costs by app lyi ng modern numeri ca 1 simulation techniques such as the finite element type procedures. In thi s context, the basic ojecti ve of the workshop SUtoP (~imul ation of !:!etal F~rming ~rocesses by the Finite Element Method) was to determine and - especially - to discuss the level of finite-element-simulations of metal-forming processes with regard to technological utilization. On this purpose, eight presentations have been selected to focus the discussions onto the prime aspects such as: - technological aspects (bulk metal forming versus sheet metal forming), - constitutive laws (rigid-plastic versus elastic-plastic versus visko-pl- tic material laws), - coupled analysis (thermo-mechanical coupling), - kinematical description (Eulerian versus Lagrangian formulations, co-ro- tional formulations etc.), - numerical problems (incompressibility, integration of constitutive eq- tions, iterative and incremental schemas, etc.) , as well as - contact problems (friction, heat-transfer, etc.). In order to promote discussions, the audience of the workshop was limited to 50 participants. Due to this fact, we had to refuse unfortunately many app 1 i cat ions. However, we hope that these proceedi ngs - whi ch also inc 1 ude the discussions in an almost complete extent - will be a compensation for those who could not attend the workshop SIMOP-I.

Spis treści

Opening Address.- Session 1: Bulk Metal Forming.- Session la. Chairman: E. Steck.- Thermomechanical Analysis of Metal Forming Processes Through the Combined Approach FEM/FDM.- Finite-Element-Simulation of Metal Forming Processes Using Two Different Material-Laws.- Discussions (Session la).- Session lb. Chairman: O. Mahrenholtz.- Elastic-Plastic Three-Dimensional Finite-Element Analysis of Bulk Metal Forming Processes.- Three-Dimensional Thermomechanical Analysis of Metal Forming Processes.- Discussions (Session lb).- Session 2: Sheet Metal Forming.- Session 2a. Chairman: E. Ramm.- Numerical Simulation of Stretch Forming Processes.- Possibilities of the Finite Element Viscous Shell Approach for Analysis of Thin Sheet Metal Forming Problems.- Discussions (Session 2a).- Session 2b. Chairman: J.H. Argyris.- Numerical Simulation of the Axisymmetric Deep-Drawing Process by the FEM.- Applications of the Finite-Element-Method to Sheet Metal Flanging Operations.- Discussions (Session 2b).- Forum.