A DISCONTINUOUS GALERKIN MATERIAL POINT METHOD (DGMPM) FOR THE SIMULATION OF IMPACT PROBLEMS IN SOLID MECHANICS [PDF]
The material point method is extended in this work to the Discontinuous Galerkin approximation framework for the simulation of impacts on elastic and hyperelastic solids. The formulation is based on the weak form of conservation laws on each cell of an eulerian grid in which volume integrals are discretized on a set of material points lying in that ...
Adrien Renaud, Thomas Heuzé
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Multiscale Impact Mechanics of Additively Manufactured Periodic Cellular Solids
Autumn Rae Bernard
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Threshold Damage Mechanisms in Brittle Solids and Their Impact on Advanced Technologies
Threshold damage mechanisms in brittle covalent–ionic solids are outlined. Fracture and deformation modes are analyzed in terms of classical contact mechanics. Distinctions are made between brittle, ductile and quasiplastic mechanisms in both axial and translational contact.
Brian R. Lawn +4 more
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Bonding Mechanism from the Impact of Thermally Sprayed Solid Particles [PDF]
Power particles are mainly in solid state prior to impact on substrates from high velocity oxy-fuel (HVOF) thermal spraying. The bonding between particles and substrates is critical to ensure the quality of coating. Finite element analysis (FEA) models are developed to simulate the impingement process of solid particle impact on substrates.
Gu, S, Kamnis, S
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Impact characteristics and erosion mechanism of solid particles in a centrifugal pump
To study the impact and erosion mechanism of solid particles in centrifugal pumps, the standard k–ε turbulence model and SIMPLE algorithm are adopted in this paper. Based on the discrete phase model (DPM) of the Lagrange method and McLaury erosion model, the flow impact characteristics and erosion mechanism of solid particles impacting the surface of ...
Wei Li +7 more
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Impact of dampness to changes in the mechanical properties of solid fired bricks
Abstract This work deals with the monitoring of changes in the mechanical properties of solid fired bricks depending on their dampness using non-destructive methods. Decreases of first natural frequencies by the resonance method and increase of passage times of ultrasonic waves depending on increasing dampness are monitored. The elements
V Bartoň, J Šnédar, P Cikrle
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Numerical investigation on Stress Intensity Factor and J Integral in Friction Stir Welded Joint through XFEM method [PDF]
In fracture mechanics (domain of cracked environments), it is concerned to forecast the behavior of the structures until their ruin. Friction Stir Welding (FSW) is a new process for solid-state joining, it can weld high strength aluminum alloys from the ...
Imane Elmeguenni, Mohamed Mazari
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Wave mitigation in ordered networks of granular chains [PDF]
We study the propagation of stress waves through ordered 2D networks of granular chains. The quasi-particle continuum theory employed captures the acoustic pulse splitting, bending, and recombination through the network and is used to derive its ...
Daraio, Chiara +2 more
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Impact of phase separation morphology on release mechanism of amorphous solid dispersions
Amorphous solid dispersions (ASDs) can phase separate in the gel phase during dissolution, lowering the chemical potential and thus the driving force for drug release. The purpose of this study is to explore the connection between amorphous phase separation in the hydrated ASD and its resulting release rate.
Yi Rang Han, Yingshan Ma, Ping I. Lee
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Cavitation Induction by Projectile Impacting on a Water Jet [PDF]
The present paper focuses on the simulation of the high-velocity impact of a projectile impacting on a water-jet, causing the onset, development and collapse of cavitation. The simulation of the fluid motion is carried out using an explicit, compressible,
Farhat, M. +4 more
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