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This talk gives a brief review of the recent updates in frequency domain solvers in LS-DYNA. A series of frequency domain solvers have been implemented to LS-DYNA since ls971 R6. They include FRF (Frequency Response Functions), SSD ...

Model Reduction Techniques (MRT) are algebraic approximation solutions allowing for fast (real- time) interpolations (reconstruction) or extrapolations (prediction), based on previously existing DOE-type results, obtained either from ...

Numerical simulations used to predict events are always challenging. Among the challenges is establishing some basis for confidence in the results when no experimental results exist, i.e. a prediction. While there is no assurance that ...

The design of Pyrotechnic Pistons is subjected to many unknowns, its methodology sometimes consists of many experiments in a trial & error process. This paper presents the design process of such a device. In this work a model–based ...

Inverse methods for the material strength model calibration are widespread techniques, which allow taking into account for the actual strain, strain-rate, temperature and triaxiality fields inside the specimen. An optimization ...

Spanende Prozesse sind durch sehr hohe Dynamik und Verformungszuständen gekennzeichnet. Mit Hilfe der Simulationstechnologie sind bereits verschiedene Zerspanungsprozesse mit guten Ergebnissen analysiert worden. Obwohl sich ...

Over the past few decades, there has been a growing interest in modelling of machining processes. In this regard, smoothed particle hydrodynamics (SPH) is one of the latest methods used for that purpose. SPH is a powerful technique ...

The non-structural mass in the large commercial airliners includes fuel, cargo, passengers, luggage, seats, lockers, etc. The straightforward approach for modelling of this non-structural mass is to include it as additional mass ...

The Arbitrarian Lagrangian Eulerian (ALE) method of LS-DYNA® software is the best actual solution to perform AirBlast simulation. Indeed, thanks to its coupling method (ALE/FSI), it allows to the user to model complex blast waves ...

Investigation of marine accident causes usually depends on the judgments of maritime experts, based on the statements of the concerned persons in the case where there is no navigation equipment, such as AIS and VDR. Scientific ...