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Implicit forming simulations for “Die‐Less‐Hydroforming”‐structures
Author(s) -
Metzger Andreas,
Ruff Daniel C.,
Ummenhofer Thomas
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800167
Subject(s) - hydroforming , solver , scaling , die (integrated circuit) , forming processes , process (computing) , computer science , computer simulation , simulation software , finite element method , software , process simulation , computational science , simulation , mechanical engineering , structural engineering , engineering , mathematics , geometry , programming language , operating system
FEM forming simulations are often performed using an explicit solver, which usually requires time‐scaled and often mass‐scaled simulation approaches. Explicit simulation with the commercial software LS‐DYNA also provides very good results for the forming simulation of the innovative process of “"Die‐Less‐Hydroforming” when time‐scaling and relatively very strong mass‐scaling are used. Nevertheless, this paper presents an implicit forming simulation for “Die‐Less‐Hydroforming” using LS‐DYNA, which can be used on the one hand (in addition to costly experimental investigations) as comparison and verification of the explicit simulation. On the other hand, the simulation of the forming process, which in reality is quasi‐static, corresponds more precisely with regard to the mapping of its process time, since neither time‐scaling nor mass‐scaling are required when using the implicit solver in comparison to the calculation with the explicit solver.