Agenda
The LS-DYNA Forum will be held 6 - 8 October 2014 in Bamberg, Germany.
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Developer Forum
Monday, 6 October 2014
| 11:00 |
Registration | ||
| DEVELOPER PRESENTATIONS | Workshop | Workshop | |
| 13:00 | Welcome |
Contacts in LS-DYNA LS-DYNA offers extensive possibilities to model contact. While this generous selection guarantees extreme flexibility for the contact definition, it also requires a great deal of knowledge on the user's part. The objective of this workshop is to provide the user with a summary of the possibilities and limits of the various contact formulations with focus on the selection of a suitable contact type. |
Material Failure of Metals This workshop will discuss issues related to state-of-the-art material modeling under consideration of damage and failure using the material model GISSMO. Besides a discussion on the dependency of the deformation patterns on anisotropy and the tri-axial condition, the complex descriptions of failure are explained with respect to their dependency on the finite element size. |
| 13:15 | Recent Developments for Hot Stamping and Welding Processes in LS-DYNA | ||
| 13:45 | Current Status of Subcycling and Multiscale Simulations in LS-DYNA | ||
| 14:15 | The Recent Update of LS-DYNA Meshfree and Advanced FEM for Manufacturing Application | ||
| 14:45 | Paper Modeling in LS-DYNA | ||
| 15:15 | Break | ||
| DEVELOPER PRESENTATIONS | Workshop | Workshop | |
| 16:00 | Interesting Things I‘ve been Working on |
Joining Techniques in LS-DYNA This workshop offers insight into the modeling possibilities in LS-DYNA to the most frequently used connections, such as adhesive bonding, bolt fastening, welding, spot-weld adhesive bonding or riveting. Herein, the load carrying action of the individual connections as well as their structural stability will be discussed and the possible modeling approaches are demonstrated. Finally, the reliability of the obtained results are critically reviewed with particular emphasis on scenarios that include connection failure. |
Modeling Plastics The objective of this workshop is to give an overview of the available material models for foams, rubbers and glues in LS-DYNA and on how to apply them properly. Especially in rubber materials, the strain rate dependency as well as damage play an important role in the constitutive material formulation and thus, both have to be considered. Moreover, thermoplastics exhibit a complex mechanical behavior ranging from viscoelastic to viscoplastic, which can be clearly distinguished from the incompressible yield characteristics of metals. |
| 16:30 | Updated Frequency Domain Analysis in LS-DYNA | ||
| 17:00 | Numerical Investigation of Phase Change and Cavitation Effects | ||
| 17:30 |
Miscellaneous Developments in LS-DYNA |
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| 18:00 | Beverages and snacks in the exhibition | ||
User Forum
Tuesday, 7 October 2014
| Welcome / Keynote presentations | |
| 9:00 | Welcome |
| 9:10 | Recent Developments in LS-DYNA I |
| 9:45 | On two Recent Advances in Computational Mechanics: IsogeometricAnalysis of Shells and Variational Mass Scaling |
| 10:15 | Break |
| 10:50 | Sponsor presentation: Fujitsu & Intel |
| 11:00 | Occupant Simulation for the Mercedes-Benz S-Class |
| 11:30 | Challenges and Developments in Child Safety CAE |
| 12:00 | CAE from a Material Supplier‘s Point of View |
| 12:30 | Lunch break |
| Crash simulation I Materials |
ProCess simulation I Applications |
CAE ProCesses I | ||
| 13:50 | Einfluss der Anisotropie auf die Bruchvorhersagefähigkeit von Aluminium Blechen | Abkürzung von Umformprozessen durch Reduzierung von Beschnitt-Operationen in Verbindung mit hochgenauem Kalibrieren | Automatic Model Reduction by Exploitation of Knowledge from Pre-existing Simulations | |
| 14:10 | Calibration of Criteria in GISSMO for Metal Failure Prediction | DYNAFORM 5.9.2 – New Features and Future Development | Reduction in Simulation Time and Storage Requirements Using LoCo for SDM | |
| 14:30 | The Simulation of Fracture Prediction by the Damage Model GISSMO in Various Materials of Sheet Metal | Determination of the Pressure Curve to Control Strain Paths in Tube Hydroforming by Applying Restart Analysis | Reduced Modeling of Crash Barriers for Design Optimization of Space Frame Automobile Structures | |
| 14:50 | On the Prediction of Material Failure in LS-DYNA: A Comparison Between GISSMO and DIEM | Simulation der wirkmedienbasierten Umformung ohne Formwerkzeug mit LS-DYNA | Animator4, neue Trends im Postprozessing | |
| 15:10 | Break | |||
| Crash simulation II MaterialS / Applications |
ProCess simulation II Roll formING / WELDING |
Materials I fiber layups / Plastics |
Workshop | |
| 15:40 | Modellierung von Felge und Reifen zur Abbildung der Radkinematik im Fahrzeugcrash | Roll Forming Simulation with PROFIL and LS-DYNA |
Industrielle Umformsimulation von Gelege-Mehrschichtverbunden |
SCALE SDM Products Since many years, DYNAmore develops software solutions for simulation engineers to manage simulation data and simulation processes. These solutions were developed together with customers from the automotive industry and fundamentally support the simulation engineer in his daily work. This workshop will present software solutions for the different stages in the CAE process chain and their usage will be demonstrated live. -LoCo: Data and process management for simulation data -CAViT: Postprocessing of simulation and experimental data -Status.E: Monitoring of requirements and target achievement |
| 16:00 | Crashsimulationen von Elektrofahrzeugen im Rahmen des EU-Projekts EVERSAFE | Gekoppelte Simulation des Umformens und des Schweißens mit LS-DYNA zur Auslegung der Schweißverzugskompensation | Simulation von Klebstoffverbindungen | |
| 16:20 | Dynamisches Materialversagen | Widerstandspunktschweißen mit LS-DYNA | Thermische Simulation der Aufheizung von Heckscheiben aus PMMA | |
| 16:50 | Break | |||
| Crash simulation III ExperimentS |
ProCess simulation III Thermomechanical |
Materials II Plastics |
Workshop | |
| 17:20 | Numerical Stress Wave Analysis in LS-DYNA and Force Measurement at Strain Rates up to 1000 /s of a High Speed Tensile Machine | Material Characterization and Modelling Methods for the Cryogenic Forming of Aluminium Alloys | Eine Methode zur Umrechnung experimentell ermittelter Fließkurven auf konstante Dehnraten als Input für Materialmodelle |
Dummy Positioning Due to the growing amount of relevant legislation and consumer tests, the field of occupant safety in vehicle technology has become more important and also gained in complexity. Thus, sound knowledge on how to deal with the involved components dummy, seatbelt and seat is essential. Attendees of this workshop will learn about the composition of an LS-DYNA occupant safety simulation, including the positioning and fitting of a seatbelt to the dummy and the recommended contact definitions between the safety systems. Particular emphasis will be laid on modeling methods and the practical application of the respective features. |
| 17:40 | Experimentelle und numerische Simulation der Einflüsse konstruktions- und fertigungsbedingter Toleranzen auf das Crashverhalten von Klebverbindungen | Coupled Simulation of the Fluid Flow and Conjugate Heat Transfer in Press Hardening Processes | Materialcharakterisierung und Modellierung von Elastomerwerkstoffen | |
| 18:00 | Numerical and Experimental Investigating on Adhesive Joint Parts for Crash Condition | 3D Simulations of the Induction Surface Hardening Processes | Nonlinear Viscoelastic Modeling for Foams | |
| 19:00 | Get together in the exhibition | |||
| 20:00 | Gala dinner | |||
Wednesday, 8 October 2014
| IT / Hardware | Materials III LONG FIBER REINFORCES PLASTICS |
Simulation methodS I | Workshop | |
| 8:20 | 1000 Core Challenge | Kurz- und langfaserverstärkte Thermoplaste - Materialmodelle in LS-DYNA | Untersuchung des Spannungs- und Verschiebungsverhaltens verschiedener LS-DYNA-Elementtypen in Kombination mit verschiedenen Anti-Hourglassing-Formulierungen und initialen Elementdeformierungen |
Best Practice in Crash Analysis and LS-DYNA Tools The workshop aims at simulation engineers, who already have practical experience in the application of LS-DYNA. Attendees will be shown, how LS-DYNA is used for crash analysis in the automotive industry and how certain simplifications become reasonable. Additionally we will present 13 tools that are supposed to help you working with LS-DYNA. Amongst others, this includes the software „plotcprs“ and „check-c“ which allow to compress d3plot-files and to identify critical warnings of contact definitions, respectively. |
| 8:40 | HPC für den Mittelstand | Aligning the Element Orientation for Building up Simulation Models of Fiber Reinforced Structures Automatically | Methode zur FE-Simulation von Mode III-Risswachstum mit LS-DYNA | |
| 9:00 | LS-DYNA Scalability: The Importance and Capability for Simulations Using Over 1000 Cores | Einsatz von LS-DYNA und modernster CT-Technologie für Geflechtstrukturen im textilen Leichtbau | Combinations of Meshes and Elements that Seems Able to Predict the Correct Deformation Mode | |
| 9:20 | Break | |||
| Passive Safety Pre- And Postprocessing |
Materials IV SHORT FIBER REINFORCES PLASTICS |
Simulation methodS II | Workshop | |
| 9:50 | New Physics-Based Preprocessing Tools for LS-DYNA Safety Simulation Set-Up | Anisotropic Modeling of Short Fibers Reinforced Thermoplastics Materials with LS-DYNA | Praxisrelevanter Vergleich zwischen der Finite-Elemente-Theorie und den netzfreien Berechnungsmethoden bei der Analyse von Zerspanungssimulationen |
LS-OPT Material Parameters 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. In this workshop, a brief introduction in LS-OPT is given with a focus on the application of LS-OPT to determine material parameters. Herein, an automatic comparison is carried out between the experimental results and the simulation results of LS-DYNA. |
| 10:10 | Simulation-Based Airbag Folding System JFOLD Version 2 - New Capabilities and Folding Examples | Kurzfaserverstärkte spritzgegossene Kunststoffbauteile einfach werkstoffgerecht simulieren | Identifikation mechanischer Steifigkeitsparameter eines vereinfachten Triebwerksaufhängungssystems mit Hilfe eines verfeinerten Aufhängungsmodells | |
| 10:30 | Automated Extraction of Occupant Injury Results | Experimentelle und numerische Untersuchung eines kurzglasfaserverstärkten Kunststoffes | Modellierung und Simulation eines gefüllten Elastomerdämpfers mit LS-DYNA | |
| 10:50 | Break | |||
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HUMAN MODELS SAFETY / Comfort |
Materials V Metals |
Simulation methodS III | Workshop | |
| 11:20 | Influence of Ribcage Shape on Response of Anthropometrically Correct 5th Percentile Female Thorax | Modellierung des Einflusses der Porenmorphologie auf das Versagensverhalten eines Aluminiumgusswerkstoffs | Blind Blast Simulationa a Validation Effort Assessment |
LS-DYNA Implicit In recent years, the simulation possibilities in LS-DYNA using an implicit time integration scheme have been enhanced extensively. The aim of this workshop is to give participants an overview of the possibilities and limits of implicit simulations using LS-DYNA. In particular, attention will be drawn on the required input cards that are needed for linear and nonlinear static simulations as well as long-duration transient simulations. |
| 11:40 | Activities Using the THUMS Human Models for Crash and Safety Applications | Material Modeling of TWIP-Steels: Applications to Sheet Metal Forming Simulations | Charakterisierung von Aluminium mittels Split-HopkinsonPressure-Bar zur Berechnung von Beschussvorgängen | |
| 12:00 | Simulation-Assisted Prosthetic Design | The Effect of Full 3-d Stress States on the Prediction of Damage and Failure in Sheet Metal Forming Simulation | Particle Methods in LS-DYNA | |
| 12:20 | Lunch break |
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| PEDESTRIAN SAFETY / Dummies | Materials VI Failure plastics |
Optimization | ProCess simulation IV – MATERIALS | |
| 13:30 | Modellierung und Validierung des Kopfaufpralls auf Windschutzscheiben | Versagen von Thermoplasten: Teil 1 - Charakterisierung, Versuche | Design Tolerance Optimization Using LS-OPT |
Implementierung eines Thermoviskoplastizitätsmodells mit Schädigung für die simultane Kalt-/Warmumformung |
| 13:50 | Auswirkungen des nicht-lokalen Versagenskriteriums auf das Beschleunigungsverhalten von Kopfimpaktoren beim Anprall im mittleren Windschutzscheibenbereich | Versagen von Thermoplasten: Teil 2 - Materialmodellierung und Simulation | Optimierung eines Transport-Schutzkoffers optischer Messgeräte mittels numerischer Simulation |
Improved Rule of Mixture for Determination of Mechanical Properties of Dual Phase Steel with Different Martensite Fraction |
| 14:10 | Latest Developments of LS-DYNA Test Dummy Models | Modellierung des Versagens von unverstärkten und kurzfaserverstärkten Polymerwerkstoffen | CAE Driven Multi Disciplinary Optimization of Vehicle Systems |
Modellierungsansätze und Simulationsmethoden zur Berücksichtigung dynamischer Maschineneigenschaften bei der Blechumformsimulation |
| 14:30 | Update in Dummy Model Enhancements and Effective Preprocessing | Accurate Prediction of the Failure of Continuous and Short Fiber Composite Components in Automotive and Aerospace Fields | Optimierung von Materialparametern durch automatisierten Abgleich von Versuch und Simulation |
Development of a Unit Cell Model for Structural Metal Sheets using *CONSTRAINED_MULTIPLE_GLOBAL |
| 14:50 | Break | |||
| Keynote presentations | |
| 15:20 |
LS-OPT: New Developments and Outlook |
| 15:45 |
Recent Developments in LS-DYNA II |
| 16:10 | Farewell |
Program subject to alterations.
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Download Agenda (pdf) |
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