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An airbag application for the ALAR incidences for the Passenger Aircrafts
The airbag system can be designed to reduce the damage on the fuselage during an Approach and Landing Accident Reduction (ALAR) situations as well as ditching in the water for the transcontinental flights. Minimum hull damage protects ...
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2011 Europäische LS-DYNA Konferenz
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Validation and Material Modelling of Plastics
The virtual estimation of physical product properties is only as good as the virtual description of the behaviour of its material. On the one hand there are well known material cards like *MAT_PIECEWISE_LINEAR_PLASTICITY in LS-DYNA© ...
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2011 Europäische LS-DYNA Konferenz
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Behaviour model for semi-crystalline polymer, application to crashworthiness simulations
Today polymer materials are frequently used in the transport domain with more severe specification requirements. The behaviour modeling and failure prediction have consequently become a priority. In this paper, an elastoviscoplastic ...
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2011 Europäische LS-DYNA Konferenz
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A constitutive model for thermoplastics with some applications
A constitutive model for thermoplastics is outlined in this paper. The model consists of two parts: A hyperelastic-viscoplastic response due to intermolecular resistance denoted Part A, and an entropic hyperelastic response due to ...
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2011 Europäische LS-DYNA Konferenz
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A constitutive equation for the aging of elastomer and application to dummy impact programs
A constitutive equation for chronorheologically simple materials that describes the aging and viscoelastic behaviors of elastomer is presented. A simulated numerical uniaxial relaxation test of a material at various aging stages has ...
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2011 Europäische LS-DYNA Konferenz
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A new advanced Visco-eleastoplatic eight chain rubber model for LS-DYNA
A new advanced eight chain rubber model has recently been implemented in LS-DYNA. The material is tailored for polymeric materials. The basic theory is taken from Arruda’s thesis from 1993 but it has been enhanced with advanced ...
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2011 Europäische LS-DYNA Konferenz
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Simulation of Shock Wave Mitigation in Granular Materials by Pressure and Impulse Characterization
The detonation of an explosive charge has two major effects, blast wave generation and fragmentation. New technologies of energy dissipation, based on granular materials, seem to have good shock attenuation capabilities. Plastic ...
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2011 Europäische LS-DYNA Konferenz
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Shock Wave Effect on Aluminium Foam
The behaviour of aluminium foam under impact loading conditions and especially the shock wave propagation are still not well understood. The shock wave propagation through the cellular material structure under impact loading ...
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2011 Europäische LS-DYNA Konferenz
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Using LS-DYNA MM-ALE capabilities to help design a wall mitigating accidental blast effects
A solution had to be found in order to protect buildings neighboring an industrial site from the blast effects of possible accidental explosions on the site. One of the main issues was that the point of detonation would occur ...
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2011 Europäische LS-DYNA Konferenz
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Influence of HE shape on blast profile
This paper is concerned by the effect of HE geometry on the shape of the blast wave. The aim of this work is to increase the knowledge on pressure profile generated by blast wave so as to optimize the design of explosion chambers. ...
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