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Incompressible CFD Results Using LS-DYNA. For High Reynolds Number Flow Around Bluff Bodies
This report will provide some insight on the new incompressible CFD solver that will be available in version 980 of LS-DYNA. Several test cases were performed by AS+ in order to evaluate the capabilities of these new solvers. These ...
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2011 Europäische LS-DYNA Konferenz
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ALE Incompressible Fluid in LS-DYNA
The computation of fluid forces acting on a rigid or deformable structure constitutes a major problem in fluid-structure interaction. However, the majority of numerical tests consists in using two different codes to separately solve ...
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User-Defined Nonlocal Models in LS-DYNA
In this paper, we present an implementation technique that aims to easily incor- porate the benefits of a nonlocal formulation to existing local constitutive models. In order to avoid pathological mesh dependency, an approximation of ...
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2011 Europäische LS-DYNA Konferenz
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Ply-based composite modeling with the new *ELEMENT_SHELL_COMPOSITE keyword
Because of their superior mechanical properties in combination with a relative low density Fiber Reinforced Composites (FRC) are of great potential in the area of lightweight structures respectively applications. Nevertheless usage ...
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About Isogeometric Analysis and the new NURBS-based Finite Elements in LS-DYNA
In the context of isogeometric analysis many research activities have focused on the use of Non-Uniform Rational B-Splines (NURBS). These NURBS-based finite elements have been studied in depth and it has been shown, that they are ...
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An Overview of User Defined Interfaces in LS-DYNA
The user-defined features in LS-DYNA are powerful tools that allow users in academia or industry to verify research results in the context of general and complicated finite element applications. Implementation work concerns only the ...
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Hypervelocity impact of aluminium sphere against aluminium plate: experiment and LS-DYNA correlation
High velocity impact of 3 mm diameter aluminium sphere against thin aluminium target plate has been performed at impact velocity of about 4000 m/s with the two stage light gas gun HERMES at Thiot Ingenierie laboratory. Impacts at ...
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Simulation of charge and structure behaviour in a tumbling mill
For a long time discrete element methods (DEM) has been used as simulation tools to gain insight into particulate flow processes. Such a process may be grinding in tumbling mills, where the mechanical behaviour is complex. To include ...
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Modeling of Cone Penetration Test Using SPH and MM-ALE Approaches
High velocity impact of 3 mm diameter aluminium sphere against thin aluminium target plate has been performed at impact velocity of about 4000 m/s with the two stage light gas gun HERMES at Thiot Ingenierie laboratory. Impacts at ...
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Application of LS-DYNA SPH Formulation to Model Semi-Solid Metal Casting
Semisolid metal alloys have a special microstructure of globular grains suspended in a liquid metal matrix. This particular physical state of the matter can be exploited to produce near-net-shape parts with improved mechanical ...
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