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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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2011 Europäische LS-DYNA Konferenz
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Qualification of *Constrained_Lagrange_In_Solid command for steel/concrete interface modeling
Modeling reinforced concrete is an important requirement for civil engineering calculation. Particularly, engineers need to have information about both rebar and concrete. The need for modeling them separately comes obviously to allow ...
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2011 Europäische LS-DYNA Konferenz
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The RHT concrete model in LS-DYNA
The RHT concrete model is implemented in LS-DYNA. It is a macro-scale material model that incorporates features that are necessary for a correct dynamic strength description of concrete at impact relevant strain rates and pressures. ...
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