Accompanying Seminars
Overview
| Seminar title | Date | Venue |
| ICFD Incompressible Fluid Solver |
9-10 May | Stuttgart, Germany |
| NVH, Frequency Domain, Fatigue |
13 May | Koblenz, Germany |
| Introduction to SPG Method for Manufacturing and Material Failure Analysis |
13 May | Koblenz, Germany |
| Resistive Heating and Battery Modeling | 13 May | Koblenz, Germany |
| ALE and FSI |
13 May | Koblenz, Germany |
| Element Types & Nonlinear Aspects | 17 May | Koblenz, Germany |
| Simulation of Short Fiber Reinforced Composites | 17 May | Koblenz, Germany |
|---|---|---|
| Explosives Modeling for Engineers | 17 May | Koblenz, Germany |
| Concrete and Geomaterial Modeling |
20-21 May | Stuttgart, Germany |
| Modeling Metalic Materials |
20-21 May | Stuttgart, Germany |
| Paramter Identification with LS-OPT |
22 May | Stuttgart, Germany |
| Material Failure |
23-24 May | Stuttgart, Germany |
| Introduction to PRIMER for LS-DYNA |
23 May | Stuttgart, Germany |
Please note: Conference attendees receive a 10% discount on these seminars. We do not offer discounted rates for students attending these seminars.
ICFD Incompressible Fluid Solver
9-10 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.
Lecturers: I. Çaldichoury (LSTC)
Language: English
13 May, Koblenz , Germany
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.
Lecturer: Dr. Y. Huang (LSTC)
Language: English
Please note: This regular 2-day course was condensed to a one day course without workshop examples.
Introduction to SPG Method for Manufactoring and Material Failure Analysis
13 May, Koblenz, Germany
This one-day class will introduce the smoothed particle Galerkin (SPG) method and its application in manufacturing and material failure analysis. The SPG method is developed for modeling large deformation and material failure in semi-brittle and ductile materials in three-dimensional solid structures, in which a bond-based failure mechanism is utilized to model material failure. This method can be used to bridge the Lagrangian FEM and is exclusively available in LS-DYNA.
The class will provide the fundamental background, LS-DYNA keywords, practical applications (in analyzing relatively low speed manufacturing processes such as metal cutting, FDS, SPR and high velocity impact penetration on concrete and metal targets) with some experimental validations and latest developments.
Lecturer: Y. Wu (LSTC)
Language: English
Resistive Heating and Battery Modeling
13 May, Koblenz, Germany
This course is based on the Electromagnetics (EM) solver of LS-DYNA. The EM module computes the Maxwell equations and is embedded into LS-DYNA following LSTCs one-code strategy, thereby allowing for an efficiently
coupling to the solid-mechanics and the thermal solver.
The seminar presents the solver’s general principles, a complete keyword description for setting up simulation models, on the one hand, to compute inductive and resistive heating problems. On the other hand, the modelling of batteries is addressed. Thereby exploiting the Randles-circuit approach to describe the charging and discharging process as well as the accompanying heat production.
Lecturers: I. Çaldichoury (LSTC)
Language: English
ALE and FSI
13 May, Koblenz, 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.
Lecturers: M. Souli (University of Lille)
Language: English
Element Types and Nonlinear Aspects
17 May, Koblenz, Germany
This seminar is a collection of different topics on nonlinear aspects surrounding LS-DYNA. Emphasis is directed towards element technology and the specific elements implemented in LS-DYNA. In addition, adaptive schemes for nonlinear problems are presented. Since more and more implicit features are included in LS-DYNA, another part of the class is dealing with implicit solver technology for nonlinear problems.
Lecturer: A. Haufe (DYNAmore)
Language: English
Simulation of Short Fiber Reinforced Composites
17 May, Koblenz, Germany
Besides standard plastic materials, more and more short and long fiber reinforced plastic materials are used to manufacture automotive components, aircraft parts, sports equipment and standard household appliances. This development is due to the higher requirements for stiffness and strength. Nevertheless, the costs of production shall be kept low, using special manufacturing techniques. Since the local properties of this group of materials are highly dependent on the production process, not only new material models are necessary, which allow to consider the complex load bearing capabilities and damage mechanisms of these materials properly, but also new modeling techniques allowing to close the simulation process chain for these materials.
Short fiber reinforced composite components are usually manufactured using an injection or compaction process. Thereby, carbon or glass fibers with a length of approximately 0.1 mm to 1.0 mm are brought into final shape together with a resin material. Strong local anisotropies in such material lead to complex structural mechanic effects which need to be captured within the simulation. In this course, material models being available in LS-DYNA, some of them even developed at the DYNAmore Company are introduced and discussed. Since the consideration of the manufacturing process of such components plays an important role to be predictive in the structural analysis, different possibilities to consider results from other software tools used for the process simulation will be introduced. This way, the simulation process chain is closed for this specific group of materials using the software tool ENVYO® which is introduced within this course as well. Thereby, several homogenization strategies and the respective input parameters will be discussed and illustrated in application examples.
Lecturer: C. Liebold, T. Klöppel (DYNAmore)
Language: English
Explosives Modeling for Engineers
17 May, Koblenz, Germany
This class focuses on the application of LS-DYNA to modeling explosives. LS-DYNA simulations involving explosives can be modeled on several engineering levels from simple application of equivalent pressure histories via *LOAD_BLAST_EN-HANCED, explicit inclusion of explosive charges
using Equations-of-State and detonation via *IN-ITIAL_DETONATION, and detonation of explosive due to impact using *EOS_IGNITION_AND_GROW-TH_OF_REACTION_IN_HE. The analyst selects the appropriate degree of model sophistication to satisfy the intended use of the model results.
The modeling methods are illustrated through case studies with sufficient mathematical theory to provide the user with adequate knowledge to then confidently apply the appropriate modeling method.
This training class is intended for the LS-DYNA analyst possessing a comfortable command of the LS-DYNA keywords and options associated with typical Lagrange and Multi-Material Arbitrary Lagrange Eulerian (MM-ALE) analyses. The training class will attempt to provide the analyst with the
additional tools and knowledge required to model explosives for a range of applications. The theory and illustrations portions of the class will benefit LS-DYNA users and non-LS-DYNA users alike.
Lecturer: P. Du Bois (Consultant), L. Schwer (Schwer Engineering & Consulting Services)
Language: English
Concrete and Geomaterial Modeling
20-21 May, Stuttgart, Germany
Constitutive models for concrete and geomaterials (rock and soil) are typically based on the same mathematical plasticity theory framework used to model common metals. However, the constitutive behavior of concrete and geomaterials differs from that of metals in three important ways:
- They are (relatively) highly compressible, i.e., pressure-volume response;
- Their yield strengths depend on the mean stress (pressure), i.e. frictional response; and
- Their tensile strengths are small compared to their compressive strengths.
These basic differences give rise to interesting aspects of constitutive modeling that may not be familiar to engineers trained in classical metal plasticity.
Lecturer: L. Schwer (Schwer Engineering & Consulting Services)
Language: English
Modeling Metalic Materials
20-21 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.
Lecturer: F. Andrade (DYNAmore)
Language: English
Parameter Identification with LS-OPT
22 May, Stuttgart, Germany
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.
Lecturer: K. Witowski, C. Keisser (DYNAmore)
Language: English
Material Failure
23-24 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.
Lecturer: F. Andrade (DYNAmore), M. Feucht (Daimler)
Language: English
Introduction to PRIMER for LS-DYNA
23-24 May, Stuttgart, Germany
In this seminar the practical use of PRIMER is arranged for the participant. All important functions are described and demonstrated in the context of a Workshops. On the basis of many training examples the participant learns the safe operation for different areas of application.
The event is organised in collaboration with Ove Arup Systems, the developer and provider of PRIMER.
Lecturer: D. Kessler (DYNAmore)
Language: English