Results 1 to 10 of about 1,136,478 (300)
Impact of boundaries on velocity profiles in bubble rafts
, 2006 Under conditions of sufficiently slow flow, foams, colloids, granular matter, and various pastes have been observed to exhibit shear localization, i.e. regions of flow coexisting with regions of solid-like behavior. The details of such shear localization
C. Macosko +5 more
core +1 more source
Low velocity impact modeling in composite laminates capturing permanent indentation [PDF]
, 2012 This paper deals with impact damage and permanent indentation modeling. A numerical model has been elaborated in order to simulate the different impact damage types developing during low velocity/low energy impact.
Barrau, Jean-Jacques +2 more
core +4 more sources
Simultaneous velocity, impact and force control [PDF]
Robotica, 2009 SUMMARYIn this paper, we propose a control method to achieve three objectives simultaneously: velocity regulation during free motion, impact damping and finally force reference tracking. During impact, the parameters are switched in order to dissipate the energy of the system as fast as possible and the optimal switching criteria are deduced.
Zotovic Stanisic, Ranko|||0000-0002-4746-2101 +1 more
openaire +3 more sources
Self-diffusion in granular gases: Green-Kubo versus Chapman-Enskog
, 2005 We study the diffusion of tracers (self-diffusion) in a homogeneously cooling gas of dissipative particles, using the Green-Kubo relation and the Chapman-Enskog approach. The dissipative particle collisions are described by the coefficient of restitution
Abramowitz M., Ben-Naim E., Resibois P.
core +1 more source
Rubber Impact on 3D Textile Composites [PDF]
, 2012 A low velocity impact study of aircraft tire rubber on 3D textile-reinforced composite plates was performed experimentally and numerically. In contrast to regular unidirectional composite laminates, no delaminations occur in such a 3D textile composite ...
A Byers +33 more
core +3 more sources
Impact resistance of gypsum board subjected to low velocity impact
Tehnicki vjesnik - Technical Gazette, 2017 The aim of this study was to investigate the impact resistance and damage behaviour of gypsum and composite gypsum boards subjected to low velocity impact. Low velocity impact tests were performed on four different board materials which can be listed as gypsum boards, gypsum+75 gr/m² mesh boards, gypsum+wallpaper boards and gypsum+75 gr/m² mesh ...
Kara, Memduh +2 more
openaire +4 more sources
Experimental and numerical study of AA5086-H111 aluminum plates subjected to impact [PDF]
, 2013 An experimental and numerical study of medium-velocity impact (within the range of 120 m/s) has been conducted on thin AA5086-H111 aluminum square plates. Targets with different thicknesses (between 2.5 and 4 mm), stratifications and aluminum alloys have
Abdulhamid, Hakim +3 more
core +3 more sources
Extragalactic planetary nebulae as mass tracers: biases in the estimate of dynamical quantities [PDF]
, 1999 Planetary Nebulae (PNe) are very important kinematical tracers of the outer regions of early-type galaxies, where the integrated light techniques fail. Under ad hoc assumptions, they allow measurements of rotation velocity and velocity dispersion profile
Arnaboldi, M. +2 more
core +1 more source
Silver Hardening via Hypersonic Impacts
, 2018 The search for new ultra strong materials has been a very active research area. With relation to metals, a successful way to improve their strength is by the creation of a gradient of nanograins (GNG) inside the material. Recently, R.
Autreto, Pedro Alves da Silva +2 more
core +1 more source