Begleitende Seminare
Übersicht
| Seminartitel | Datum | Seminarort |
| Modeling Metallic Materials | 2. - 3 Mai | Stuttgart |
| Damage and Failure Modeling | 4. - 5 Mai | Stuttgart |
| Nonlinear Implicit Analysis with LS-DYNA |
8. Mai | Salzburg |
| Parameter Identification with LS-OPT | 8. Mai | Salzburg |
| Meshfree EFG, SPG, Advanced FE Methods | 8. Mai | Salzburg |
| Smoothed Particle Hydrodynamics (SPH) in LS-DYNA | 12. Mai | Salzburg |
|---|---|---|
| NVH, Frequency Domain and Fatigue with LS-DYNA | 12. Mai | Salzburg |
| Electromagnetism in LS-DYNA | 12. Mai | Salzburg |
| ALE and Fluid-Structure Interaction | 15. - 16. Mai | Stuttgart |
| ICFD Incompressible Fluid Solver in LS-DYNA | 17. - 18. Mai | Stuttgart |
Modeling Metallic Materials
2 - 3 May, Stuttgart, Germany
Plenty of material models are available in LS-DYNA for describing the mechanical behavior of metallic materials. However, a profound understanding of the adopted material model is crucial for obtaining reasonable and reliable FE simulation results. The aim of this class is to give practical guidelines about the application of the most commonly used material formulations. The focus will be especially on the underlying basic theory as well as on the assumptions made for the corresponding material formulations. Moreover, besides the practical information about particular input formats and the relevance of special settings, the algorithmic background of the various models will also be highlighted. Finally, diverse applications for the most commonly used metallic material models in LS-DYNA will be illustrated with the help of simple examples.
Lecturers: Dr. Filipe Andrade (DYNAmore)
Language: English
4 - 5 May, Stuttgart, Germany
This two-day seminar will discuss issues related to the adjustment of material models considering the failure, which can sometimes be relatively complex. The seminar intends to look at the complete picture, reaching from the approach to test design to the actual creation of a material card using LS-DYNA, thus reflecting the entire verification and validation process. In more detail, the conversion of test data to real stress and expansion values will be explained, as well as the dependencies of deformation patterns on anisotropy and tri-axial condition, including complex descriptions of failure. In addition, the seminar intends to explain, in particular, the influence of model reduction in shell elements, using descriptions of failure. e.g. according to Wierzbicki, on the basis of Gurson, Johnson-Cook and extended Barlat models. The influence of the dependency on element size will be discussed in the context of expansion and energy equivalence. The issues of material stability and strength loss will be discussed in detail using the Gurson material model. Exercise examples illustrate the theoretical findings.
Referenten: Dr. Filipe, Dr. Markus Feucht (Daimler)
Sprache: Englisch
Nonlinear Implicit Analyses with LS-DYNA
8 May, Salzburg, Austria
The implicit solver of LS-DYNA is well suited to handle many challenging applications, thereby coping with large deformations, difficult contact situation and material nonlinearities. With respect to the latter, there are many advanced material models available that are suitable for both explicit and implicit analysis. Moreover, the scalability on many CPU cores is very good, which allows for the treatment of large scale problems.
The goal of this one-day seminar is to present a brief, practical introduction to the implicit capabilities in LS-DYNA with a focus on nonlinear structural analysis. The course is suited for users with some previous experience from using LS-DYNA, or for experienced users of other implicit FE-programs.
Referenten: Pierre Glay (DYNAmore)
Sprache: Englisch
Parameter Identification with LS-OPT
8 May, Salzburg, Austria
The use of new materials, such as plastics, composites, foams, fabrics or high-tensile steels, demands the application of highly complex material models. These material formulations are generally associated with numerous material parameters. The optimization program LS-OPT is ideally suited for identifying these parameters. In the identification process, an automatic comparison is carried out between the experimental results and the simulation results of LS-DYNA. Thereafter, the error between experiments and simulations is minimized. In this seminar, a brief introduction in LS-OPT is given with a focus on the application of LS-OPT to determine material parameters. No prior knowledge about optimization or the application of LS-OPT is required.
Referent: Katharina Witwoski (DYNAmore)
Sprache: Englisch
Meshfree EFG, SPG, Advanced FE Methods
8 May, Salzburg, Austria
Particular attention is drawn on the application of the meshless method “Element-Free Galerkin” (EFG) as well as the newly developed method “Smoothed Particle Galerkin” (SPG). The seminar will thoroughly refer to the settings required in the LS-DYNA input deck to carry out a successful nonlinear meshfree or advanced FEM simulation. Herein, the difference between the conventional EFG and SPG formulations and the adaptive or discontinuous formulations will be explained. Common applications of these methods are materials made of rubber or foam that undergo large deformations. The adaptive EFG formulation is the method of choice for the efficient simulation of cutting, bulk forming and forging processes. In particular, the new features of local mesh refinement in combination with the implicit time integration are the key enablers for these processes. Moreover, fracture simulations can be carried using the discontinuous EFG formulation.
Referent: Dr. Wei Hu (LSTC)
Sprache: Englisch
Bitte beachten: Der reguläre zweitägige Kurs wurde hier zu einem eintägigen Kurs ohne Workshop-Beispiele zusammengefasst.
Smoothed Particle Hydrodynamics (SPH) in LS-DYNA
12 May, Salzburg, Austria
Due to the true meshless nature of SPH, the method is perfectly suitable in situations with very large deformations. Typical applications of SPH in LS-DYNA include impact simulations of fluids or solids or other scenarios where it is essential to capture the momentum exchange accurately. Attendees will learn the application of the SPH with the aid of many workshop examples. The course instructor Prof. Mhamed Soul of the University of Lille is a long-term software developer at LSTC and is frequently implementing new features for the methods ALE and SPH in LS-DYNA. This seminar aims at engineers who have already worked with LS-DYNA and would like to use SPH as a meshless method.
Referent: Dr. Jingxiao Xu (LSTC)
Sprache: Englisch
Bitte beachten: Der reguläre zweitägige Kurs wurde hier zu einem eintägigen Kurs ohne Workshop-Beispiele zusammengefasst.
NVH, Frequency Domain and Fatigue with LS-DYNA
12 May, Salzburg, Austria
The objective of the training course is to introduce the frequency domain vibration, fatigue and acoustic features of LS-DYNA to users, and give a detailed look at the application of these features in vehicle NVH simulation. This course is recommended for engineers who want to run NVH or other frequency domain vibration, fatigue and acoustic simulation problems with LS-DYNA. This course is useful for engineers and researchers who are working in the area of vehicle NVH, aircraft/spacecraft vibro-acoustics, engine noise simulation, machine vibration testing and simulation, etc.
Referent: Dr. Yun Huang (LSTC)
Sprache: Englisch
Bitte beachten: Der reguläre zweitägige Kurs wurde hier zu einem eintägigen Kurs ohne Workshop-Beispiele zusammengefasst.
Electromagnetism in LS-DYNA
12 May, Salzburg, Austria
This course provides an introduction to the Electromagnetics (EM) solver in LS-DYNA. The Maxwell equations are solved in the Eddy-Current approximation suitable for cases, where the propagation of electromagnetic waves in air (or vacuum) can be considered as instantaneous. The solver is coupled with the solid mechanics and thermal solvers of LS-DYNA allowing the simulation and solution of applications such as magnetic metal forming, welding, bending, induced heating, resistive heating and so forth. The course includes a presentation of the solver’s general principles and applications, a complete keyword description for setting up an Eddy-Current problem, an introduction to the more advanced features (Inductive heating problems, exterior magnetic field, magnetic materials and so forth) as well as an advanced description of the available controlling tools to ensure a safe analysis. Key electromagnetic concepts are reviewed throughout the course and a general knowledge about electromagnetics is therefore appreciated but not mandatory.
Referent: Iñaki Çaldichoury (LSTC)
Sprache: Englisch
ALE and Fluid-Structure Interaction
15 - 16 May, Stuttgart, Germany
In this seminar, you receive comprehensive information directly from one of the program developers about the latest developments of the features provided by the solver LS-DYNA to analyse fluids and, in particular, the fluid-structure interaction using its Arbitrary Lagrangean Eulerian (ALE) capabilities. The theoretical background to fluid modeling in LS-DYNA is presented and illustrated with several practical applications. Problems solved during the workshop include tank sloshing, tank dropping (partially and completely filled), viscous flow in a channel, underwater explosion, bird strike, ship collision and acoustics in air and water. The seminar is directed towards advanced LS-DYNA users, whereas prior knowledge of fluid dynamics is not required.
Referent: Prof. Mhamed Souli (University Lille / LSTC))
Sprache: Englisch
ICFD Incompressible Fluid Solver in LS-DYNA
17 - 18 May, Stuttgart, Germany
This course provides an introduction to the incompressible fluid solver (ICFD) in LS-DYNA. It focuses on the solution of CFD problems, where the incompressibility constraint may be applied, e. g. ground vehicle, aerodynamics, hemodynamics, free-surface problems, ship hydrodynamics, etc. The solver may run as a stand-alone CFD solver, where only fluid dynamics effects are studied, or it can be coupled to the solid mechanics solver to study loosely or strongly coupled fluid-structure interaction (FSI) problems. The first day of the course includes a presentation of the general principles and applications of the solver, a step by step guide to setting up a simple CFD problem, advanced feature introduction (FSI, conjugate heat transfer) and so forth. A brief review of basic fluid mechanics and CFD concepts are also offered such that no expert knowledge of fluids is required. The second day will deal with the newly implemented features and advanced applications.
Referent: Iñaki Çaldichoury (LSTC)
Sprache: Englisch
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