Results 31 to 40 of about 158,032 (303)
Mechanical Properties of Frozen Glacial Tills due to Short Periods of Thawing
Frontiers in Earth Science, 2021 Due to the warming climate, glacier retreat has left massive glacial tills in steep gullies; ice in the soil is prone to change phase resulting in the decrease of the ice strength and bonding of soil particles; collapse of thawing tills can lead to ...
Yanju Fu +10 more
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Role of surface roughness in superlubricity [PDF]
, 2006 We study the sliding of elastic solids in adhesive contact with flat and rough interfaces. We consider the dependence of the sliding friction on the elastic modulus of the solids.
Persson, Bo N. J. +2 more
core +1 more source
Литьë и металлургия, 2019 Increasing the operational reliability of friction units is one of the priorities for mechanical engineering, which requires the creation of effective tribotechnical materials.
A. S. Kalinichenko +3 more
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Materials Research Express, 2021 In this paper, a general three-dimensional finite element model composed of eight-node three-dimension cohesive elements and eight-node solid elements with reduced integration for low-velocity impact analysis of composite materials is established ...
J R Shao, N Liu, Z J Zheng
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Plane problem of discrete environment mechanics
Проблеми трибології, 2022 Many engineering problems related to the design of structures and machines, the mathematical description of technological processes, etc., are reduced to the need to solve a plane problem for materials with a significant effect of internal friction on ...
O.V. Bagrii
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Numerical modeling of friction stir welding using the tools with polygonal pins
Defence Technology, 2015 Friction stir welding using the tools with polygonal pins is often found to improve the mechanical strength of weld joint in comparison to the tools with circular pins. However, the impacts of pin profile on the peak temperature, tool torque and traverse
M. Mehta, G.M. Reddy, A.V. Rao, A. De
doaj +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Behavior of diatomaceous soil in lacustrine deposits of Bogotá, Colombia
Journal of Rock Mechanics and Geotechnical Engineering, 2018 This work presents a study on the behaviors of diatomaceous soils. Although studies are rarely reported on these soils, they have been identified in Mexico City, the Sea of Japan, the northeast coast of Australia, the equatorial Pacific, and the ...
Bernardo Caicedo +3 more
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Observation of a Dislocation Related Interfacial Friction Mechanism in Mobile Solid $^4$He
, 2012 We report a study of the temperature and stress dependence of the friction associated with a relative motion of two masses of solid $^4$He in contact. The situation where "two masses" coupled only by friction exists emerges spontaneously during a disordering of a single crystal contained inside a annular sample space of torsional oscillator (TO). Under
Eyal, Anna, Livne, Ethan, Polturak, Emil
openaire +2 more sources
Multiphysics models for friction stir welding simulation [PDF]
, 2013 Purpose: The Friction Stir Welding (FSW) process comprises of several highly coupled (and non-linear) physical phenomena: large plastic deformation, material flow transportation, mechanical stirring of the tool, tool-workpiece surface interaction ...
Hamilton, Robert +2 more
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