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Thermo-mechanisch gekoppelte Prozesssimulation zur gleichzeitigen Warm-/Kaltumformung einer Flanschwelle
A new, highly innovative manufacturing technology is the simultaneous warm and cold forming process of the workpiece with successive hardening process directly in the forming dies. It is developed in the context of the Collaborative ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Using LS-DYNA for Hot Forming
LS-971 has several features to model the hot forming process. A thick thermal shell formulation for the blank allows modeling a temperature gradient through the thickness. The keyword, *MAT_ADD_THERMAL_EXPANSION, allows calculating ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Numerische Simulation des Presshärtprozesses unter Berücksichtigung der Gefügeumwandlung
Numerical simulation by means of Finite-Element-Method has become an indispensable tool for process design of metal-forming processes. But new steels and new processes, e. g. hot stamping, require advanced material models for valid ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Accurate hardening modeling as basis for the realistic simulation of sheet forming processes with complex strain-path changes
Sheet metal forming involves large strains and severe strain path changes. Large plastic strains lead in many metals to the development of persistent dislocation structures resulting in strong flow anisotropy. This induced anisotropic ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Simulation of metastable austenitic stainless steels with LS-DYNA
This talk presents the simulation of metastable austenitic stainless steels with LS-DYNA, "Hänsel" - a model for metastable austenitic stainless steels and different kinds of simulation examples. It concludes with a short summary and ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Incremental Sheet Forming - Process Simulation with LS-DYNA
Incremental CNC sheet forming (ISF) is a relatively new sheet metal forming process for small batch production and prototyping. In ISF, a blank is shaped by the CNC movements of a simple tool in combination with a simplied die. The ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Verkürzung der Tryout-Phase durch Prozessfenster-Ermittlung und Ziehsickenoptimierung
M. Schneider (Salzgitter Mannesmann Forschung) Die Abschätzung der Herstellbarkeit von Tiefziehbauteilen mittels der Finiten-Elemente-Methode ist schon länger Stand der Technik. Die Genauigkeit und die Zuverlässigkeit der ...
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2007 Deutsches LS-DYNA Forum
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Metal Forming
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Analyse und Bewertung von Tragwerksprozessen – Detektion von Verzweigungspunkten
In diesem Beitrag wird ein Verfahren zur Detektion von Verzweigungspunkten in unscharfen Tragwerksprozessen vorgestellt. Alle ermittelten reellwertigen Realisierungen eines unscharfen Tragwerksprozesses werden in eine zutreffende ...
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2007 Deutsches LS-DYNA Forum
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Crash
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Verstärkung geschlossener Profile zur Verbesserung der Crasheigenschaften von Karosseriestrukturen
The reinforcements of door sills are investigated using both numerical simulations and structural tests. The examinations are based on a test configuration similar to the EuroNCAP pole test which allows to cover the effects of local ...
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2007 Deutsches LS-DYNA Forum
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Crash
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Computational simulations of road safety barriers using LS-DYNA
One of the major tasks in road transportation is to assure an adequate safety level for road users. To maintain and improve road safety, it is often necessary to install certain devices on the road that are intended to restrain ...
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2007 Deutsches LS-DYNA Forum
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Crash
