Evolution of foamed aluminum melt at high rate tension: A mechanical model based on atomistic simulations

2018 ◽  
Vol 124 (3) ◽  
pp. 035901 ◽  
Author(s):  
Polina N. Mayer ◽  
Alexander E. Mayer
Keyword(s):  
Mechanical Model ◽  
High Rate ◽  
Atomistic Simulations ◽  
Aluminum Melt ◽  
Model Based

Mechanical model based on a BVP for FRPs applied on flat and curved masonry pillars with anchor spikes

2021 ◽  
pp. 114251
Author(s):  
Elisa Bertolesi ◽  
Ernesto Grande ◽  
Mario Fagone ◽  
Gabriele Milani ◽  
Tommaso Rotunno
Keyword(s):  
Mechanical Model ◽  
Model Based

scholarly journals Proprioception In Insects

1938 ◽  
Vol 15 (1) ◽  
pp. 114-131 ◽  
Author(s):  
J. W. S. PRINGLE
Keyword(s):  
Contact Pressure ◽  
Mode Of Action ◽  
Mechanical Model ◽  
Campaniform Sensilla ◽  
Chemical Substances ◽  
Parallel Orientation ◽  
Model Based ◽  
Vertebrate Limb ◽  
Olfactory Stimuli ◽  
Anatomical Arrangement

1. The campaniform sensilla on the legs of Periplaneta are similar in action to those on the palps, and respond to strains in the cuticle. 2. They are arranged in groups at the joints, with parallel orientation of the sensilla of a group. 3. Tests with various chemical substances show a complete absence of sensitivity to olfactory stimuli. 4. A theory is given of the mode of action of the sensilla in terms of a mechanical model based on their observed structure. Each group of parallel sensilla should act as a unit, responding to those forces which have a compression component of shear in the direction of their long diameters. 5. This theory makes it possible to predict the behaviour of the sensilla from their anatomical arrangement. Most if not all the groups on the legs are so arranged as to be sensitive to the forces present when the insect is standing on the ground. 6. The sensilla probably provide the basis for the sense of contact pressure postulated by Holst (1935), Hoffmann (1933), Crozier & Stier (1928-9), Fraenkel (1932) and others. 7. Comparison of this proprioceptive mechanism with that of the vertebrate limb reveals an absence of qualitative sensitivity that may have an important bearing on the question of the evolution of behaviour.

scholarly journals An anisotropic damage model based on dislocation-mediated nucleation of cracks under high-rate compression

2020 ◽  
Vol 137 ◽  
pp. 103818
Author(s):  
Nitin P. Daphalapurkar ◽  
Darby J. Luscher ◽  
Daniele Versino ◽  
Len Margolin ◽  
Abigail Hunter
Keyword(s):  
Damage Model ◽  
High Rate ◽  
Anisotropic Damage ◽  
Model Based

scholarly journals In-silico pre-clinical trials are made possible by a new simple and comprehensive lumbar belt mechanical model based on the Law of Laplace including support deformation and adhesion effects

PLoS ONE ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. e0212681
Author(s):  
Jérôme Molimard ◽  
Rébecca Bonnaire ◽  
Woo Suck Han ◽  
Reynald Convert ◽  
Paul Calmels
Keyword(s):  
Clinical Trials ◽  
In Silico ◽  
Mechanical Model ◽  
Model Based ◽  
The Law

MODELING OF Al CRYSTAL FRACTURE UNDER HIGH-RATE STRAIN BASED ON ATOMISTIC SIMULATIONS

2008 ◽  
Author(s):  
Alexey Yu. Kuksin ◽  
Genri E. Norman ◽  
Vladimir V. Stegailov ◽  
Alexey V. Yanilkin ◽  
Mark Elert ◽  
...  
Keyword(s):  
High Rate ◽  
Atomistic Simulations ◽  
Crystal Fracture

Kinetics of Precipitation: Comparison between Monte Carlo Simulations, Cluster Dynamics and the Classical Laws

2005 ◽  
Vol 237-240 ◽  
pp. 671-676 ◽  
Author(s):  
Philippe Maugis ◽  
Frédéric Soisson ◽  
Ludovic Lae
Keyword(s):  
Monte Carlo ◽  
Kinetic Monte Carlo ◽  
Diffusion Mechanism ◽  
Interface Energy ◽  
Atomic Scale ◽  
Atomistic Simulations ◽  
Model Based ◽  
Kinetics Of Precipitation ◽  
Kinetics Of ◽  
Nucleation Growth

We test the main approximations of the classical laws for nucleation, growth and coarsening by comparison with atomistic simulations of the kinetics of precipitation. We investigate the kinetics of phase separation in dilute A-B solid solutions by precipitation of B atoms in the Arich matrix. Classically, the kinetics is represented by the time evolution of the total number of particles and their mean radius. In this work, the kinetics is predicted by three types of models: (a) an Atomic-scale Kinetic Monte Carlo (AKMC) model based on a vacancy diffusion mechanism, (b) a Cluster Dynamics model, and (c) the MultiPreci model, based on the coupling of the classical laws of nucleation, growth and coarsening. Cluster Dynamics and the Multipreci model have been parameterized such that the thermodynamic and kinetic parameters (solubility, diffusion coefficient, interface energy) be identical to that of the AKMC. Under these conditions we find that the classical laws are in good agreement with the atomistic simulations as long as the thermodynamics of the solid solution remains strictly regular. As expected, Cluster Dynamics compares better with the atomistic simulations, especially if a precise description of the energetics of the smallest clusters is applied.

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