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Impact loading of a space nuclear powerplant [PDF]
Fracture and Structural Integrity, 2013 Preferred formulation of the problem in two space dimensions are described for solving the three fundamental equations of mechanics (conservation of mass, conservation of momentum, and conservation of energy).
Evgeny I. Kraus, Ivan I. Shabalin
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Threshold Damage Mechanisms in Brittle Solids and Their Impact on Advanced Technologies
SSRN Electronic Journal, 2022 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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Impact characteristics and erosion mechanism of solid particles in a centrifugal pump
Frontiers in Energy Research, 2023 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
IOP Conference Series: Materials Science and Engineering, 2021 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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Diagnostics, 2022 Soccer-related ocular injuries, especially retinal injuries, have attracted increasing attention. The mechanics of a flying soccer ball have induced abnormally higher retinal stresses and strains, and their correlation with retinal injuries has been ...
Yasin Shokrollahi +4 more
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Experimentally-Verified Modeling of InGaAs Quantum Dots
Nanomaterials, 2022 We develop a model of an epitaxial self-organized InGaAs quantum dot buried in GaAs, which takes into account experimentally determined indium distribution inside the QD, its geometry and crystallography.
Alexander N. Kosarev +2 more
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Experimental Study on Damage Fracture Law of Coal from Solid-Propellant Blasting
Energies, 2022 The low permeability of coal seams has always been the main bottleneck restricting coalbed methane drainage. In this paper, a coal seam anti-reflection technology with solid-propellant blasting was proposed, and the composition and proportion of the ...
Huaibao Chu +7 more
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The stress state of the rock mass with spherical cavity [PDF]
E3S Web of Conferences, 2023 One of the main hypotheses accepted in the mechanics of deformable solids is the assumption of the homogeneity of materials. This means that all mechanical characteristics of the material (modulus of elasticity, Poisson’s ratio, yield strength ...
Andreev Vladimir
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A DISCONTINUOUS GALERKIN MATERIAL POINT METHOD (DGMPM) FOR THE SIMULATION OF IMPACT PROBLEMS IN SOLID MECHANICS [PDF]
Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2017 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 ...
Renaud, Adrien, Heuzé, Thomas
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Molecules, 2020 Structural and chemical deterioration and its impact on cell wall mechanics were investigated for visually intact cell walls (VICWs) in waterlogged archaeological wood (WAW).
Liuyang Han +8 more
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