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6th European LS-DYNA Conference

THE ROLE OF CAE MODELLING IN VOLVO SAFETY ENGINEERING
Ingrid Skogsmo - Director Volvo Cars Safety Centre
Safety has been a Volvo cornerstone from its founding in 1927, and has remained a fundamental core value since. Within the Ford Motor Company, Volvo Cars has been appointed Centre of Excellence for safety. Continuous development and expansion of the concept of automotive safety involve visionary ideas build on earlier innovative passive and active safety approaches to deliver new "intelligent" solutions designed to neutralize risks of driver ...
Uncertainty Assessment with Stochastic Simulation in Aircraft Cabin Development
D. Vogt,R. Hartnack,M. Olbert - EADS Innovation Works
J. Schlattmann, Hamburg University of Technology
To fulfill the need for shorter development cycles in modern product development the increased use of computer-aided engineering is one possibility. While the numerical calculation of a model leads to one single solution, the behavior of systems in the real world is never exactly repeatable due to tolerances and natural scatter in the system parameters. The assessment of the resulting uncertainties is of great importance for systems requiring a ...
Using LS-Dyna as an Aid to the Inclusive Design of Child Resistant Closures
Joe Luxmoore, Dr. Alaster Yoxall - University of Sheffield
The population of most developed countries is ageing. Despite continuing medical advances, ageing brings with it a host of issues, not least a loss in strength and dexterity. One major area of concern is the ability of elderly consumers to access packaged goods such as food and medicines. In previous studies, the authors developed an LS-Dyna model of a human hand that was used to investigate the effect of physical dimensions and the choice of ...
Using LS_DYNA to find Failure modes during design process
Dr. Tayeb Zeguer - Jaguar and Land Rover
Understanding the customer needs Failure Mode List Generation Detection using CAE – Capability and Enablers CAE Execution Process and the use of DFSS principles Conclusions
USING LS-OPT/LS-DYNA IN A MULTI-ATTRIBUTE OPTIMIZATON
Forsberg Jimmy, Björkman Gunnar - VTEC
This paper summarizes the experiences of using the LSTC environment in a multiattribute optimization. The work was carried out in an on-going project, SuperLIGHTCar (SLC), which aims to reduce the weight of the body in white (BIW) of a compact class car by at least 30%. This objective is made possible by using new materials and a blend of materials in the design. The car should still fulfil user rating, e.g. Euro NCAP demands but also demands of ...
VALIDATING DYNAMIC TENSILE MECHANICAL PROPERTIES OF SHEET STEELS FOR AUTOMOTIVE CRASH APPLICATIONS
P.K.C. Wood, C.A. Schley - University of Warwick
M. Buckley - Jaguar and Land Rover
B. Walker - ARUP
T. Dutton - Dutton Simulation
A thin-wall open channel beam, fabricated from high strength Dual Phase sheet steel, subjected to 3-point bending and constant velocity boundary condition, is investigated to validate material performance for automotive crash applications. Specifically quantitative validation of material tensile data determined from high speed tests and component models, and qualitative validation of materials resistance to fracture. The open channel beam is ...
Virtual Modelling of Motorcycle Safety Helmets: Practical Problems
Alessandro Cernicchi, Ugo Galvanetto, Lorenzo Iannucci - Imperial College London
Motorcycle helmets are safety devices that can be optimised to perform better in different impact configurations. It is not easy to determine the mechanical properties of a particular model of helmet which maximise its effectiveness in real impact conditions and it is not surprising that most helmet producers use empirical design procedures and assess the effectiveness of their products by carrying out numerous experimental impact tests. The ...
VOLVO TECHNOLOGY VEHICLE STRUCTURAL OPTIMIZATION ENVIRONMENT
Gunnar Björkman,Jimmy Forsberg - Volvo Technology
Jan Engström - SCH Incubator AB
With the ever increasing capability in computer power, optimizing a full vehicle structure including most of the crash load cases will be a real possibility in the near future. For example, the Cell chip used in PS3 or the availability of recent GPU of high end PC graphics cards delivers 100 – 1000 GFLOPS. The bottleneck in this scenario will not be the computer power, instead the problem will be how to feed the computers with models and input ...
WATER IMPACT: EXPERIMENTAL TESTS AND NUMERICAL SIMULATIONS USING MESHLESS METHODS
Marco Anghileri, Luigi Castelletti, Edoardo Francesconi - Politecnico di Milano, Italia
The outcomes of a research focusing on water modelling and fluid-structure interaction, are here presented. A number of water impact drop tests using a typical aircraft skin panel were performed. The tests were numerically reproduced modelling the fluid region using the two meshless methods implemented in LSTC/LS-Dyna 971: the Smoothed Particle Hydrodynamics and the Element Free Galerkin method. The accuracy of the models was evaluated referring ...
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