Gabriel Seisson
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View article: Internal Blast Effect Reduced by Dust Created by Fragments
Internal Blast Effect Reduced by Dust Created by Fragments Open
The attenuation effect on pressure and impulse of the metallic casing of an explosive charge, namely, Fano's effect, is a well‐known phenomenon thanks to the founding works of Fano and Fisher. It is mainly attributed to the kinetic energy …
View article: Using Plate-Impact-Driven Ring Expansion Tests (Pidret) to Assess Analytical Models
Using Plate-Impact-Driven Ring Expansion Tests (Pidret) to Assess Analytical Models Open
When a cased explosive charge detonates, its metallic envelop is radially accelerated under the effect of the detonation products expansion. Numerous necks then appear leading to multiple fragmentation. Ejection velocities may reach values…
View article: Plate-impact-driven ring expansion test (PIDRET) for dynamic fragmentation
Plate-impact-driven ring expansion test (PIDRET) for dynamic fragmentation Open
A new experimental set-up mounted at the muzzle of a singlestage gas gun has been designed in order to study the fragmentation of metallic rings under dynamic radial expansion. This concept takes advantage of the quasi-incompressibility of…
View article: UNCERTAINTY ESTIMATION OF EXTERNAL BLAST EFFECTS USING THE MONTE-CARLO METHOD
UNCERTAINTY ESTIMATION OF EXTERNAL BLAST EFFECTS USING THE MONTE-CARLO METHOD Open
Protection against terrorist assaults is a major concern for many countries all over the world.It entails developing counter-terrorism intelligence and intervention means, allowing the avoidance of such events but also to be able to rapidl…
View article: Full multiphase description of materials: Application on tin
Full multiphase description of materials: Application on tin Open
A full multiphase description of the behavior of tin is proposed. It is based on a multiphase equation of state that feeds multiphase strength and damage modellings. A good agreement with a series of plate impact experiments is shown.
View article: Uncertainty estimation and hierarchical Bayesian analysis of mechanical dynamic tests
Uncertainty estimation and hierarchical Bayesian analysis of mechanical dynamic tests Open
International audience
View article: Flow Stress of beryllium: Attempt for a Bayesian Crossed-data Analysis from Hopkinson Bars to Rayleigh-Taylor Instabilities
Flow Stress of beryllium: Attempt for a Bayesian Crossed-data Analysis from Hopkinson Bars to Rayleigh-Taylor Instabilities Open
In this paper, we demonstrate by a Bayesian approach the incapacity of the Preston-Tonks-Wallace (PTW) strength model to represent, with the same set of parameters, the flow stress of beryllium in both moder-ate and highly dynamic experime…
View article: Soda-lime glass behavior under laser shock
Soda-lime glass behavior under laser shock Open
International audience
View article: Hypervelocity impacts into porous graphite: experiments and simulations
Hypervelocity impacts into porous graphite: experiments and simulations Open
We present experiments and numerical simulations of hypervelocity impacts of 0.5 mm steel spheres into graphite, for velocities ranging between 1100 and 4500 m s −1 . Experiments have evidenced that, after a particular striking velocity, d…
View article: Enhancement of a dynamic porous model considering compression-release hysteresis behavior: application to graphite
Enhancement of a dynamic porous model considering compression-release hysteresis behavior: application to graphite Open
Because of their shock wave attenuation properties, porous materials and foams are increasingly used for various applications such as graphite in the aerospace industry and polyurethane (PU) foams in biomedical engineering. For these two m…