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Deep drawing simulation of α- titanium alloys using LS-DYNA
Titanium alloys have excellent properties for their target applications; however their use is still limited by high price and formability issues. To avoid extensive on-site trials and to cut development costs, a numerical simulation ...
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2011 Europäische LS-DYNA Konferenz
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Analysis of formability of advanced high strength steel sheets with phenomenologically based failure criteria with separate treatment of instability, shear and normal fracture
Despite their wide application in sheet metal forming analysis, Forming Limit Diagrams cannot supply reliable results for the cases involving non-proportional strain paths or material classes with reduced ductility such as advanced ...
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2011 Europäische LS-DYNA Konferenz
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How to Use LS-OPT for Parameter Estimation - hot stamping and quenching applications
The “direct” heat transfer problem is one in which material properties and boundary conditions are specified, and LS-DYNA [1] is used to calculate the temperature response of the nodes in the mesh. The “inverse” heat transfer problem ...
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2011 Europäische LS-DYNA Konferenz
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Comparison of material models for crash simulation- experimental and simulation work
This talk gives an insight into preparation of test specimens, measuring equipment and test results as well as material and FE models and parameter identification. It concludes with a discussion about the simulation results.
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2011 Europäische LS-DYNA Konferenz
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Optimizing Thermoplastic Parts in Crash Applications - Status and Vision
This talk introduces into the material modelling of short fibre reinforced thermoplastics for crash as well as presents ULTRASIM examples and application at OPEL. It discusses the modelling of energy absorbing structures out of ...
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2011 Europäische LS-DYNA Konferenz
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Prediction of failure on high strength steel in seat mechanisms simulation
Tracks are the mechanisms which enable to translate the seat; they are key contributors in occupant safety as link between seat and car. With the current evolution of ecologic legislation, one of major automotive industry priorities ...
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2011 Europäische LS-DYNA Konferenz
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Wood-steel structure for vehicle restraint systems
Certain roadside safety barriers are structures made of steel and wood. This kind of structure is currently in fashion in location where the safety equipments need to be discreet (mountains, countryside). In Europe, to be installed on ...
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2011 Europäische LS-DYNA Konferenz
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Crashworthiness and Sensitivity Analysis of Structural Composite Inserts in Vehicle Structure
This study is focused on identifying influential parameters in numerical analysis of structural composite inserts in vehicle structure. A 3-point bending test of a simplified steel-composite beam structure is conducted to evaluate the ...
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2011 Europäische LS-DYNA Konferenz
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The Winfrith Concrete Model : Beauty or Beast ? Insights into the Winfrith Concrete Model
This introductory document describes the basic plasticity model, the strain rate formulations and tensile cracking options. The *MAT_WINFRITH_CONCRETE model is another of the so called LS-DYNA ‘simple input’ concrete models, that ...
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2011 Europäische LS-DYNA Konferenz
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Impact Simulations on Concrete Slabs : LS-OPT Fitting Approach
This paper is based on a work realized for an international OECD benchmark initiated by IRSN and CNSC. The main goal of IRIS_2010 Benchmark was to evaluate the ability of simulation to reproduce experimental tests of impacts on ...
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