Results 21 to 30 of about 9,792 (263)

Powder Compaction Mechanics: A New General Theoretical Formulation

open access: yesJournal of King Saud University: Engineering Sciences, 2003
A new general formulation of powder compaction mechanics based on continuum mechanics concepts is presented. The general governing equations are developed, and the analysis of both dynamic and quasi-static compaction of powders in cylindrical dies is ...
Mahir H.H. Es-Saheb
doaj   +1 more source

Numerical investigation on Stress Intensity Factor and J Integral in Friction Stir Welded Joint through XFEM method [PDF]

open access: yesFracture and Structural Integrity, 2019
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
doaj   +1 more source

Structural connection with predetermined discrete variable friction forces

open access: yesResilient Cities and Structures, 2023
This paper presents a simple and practical structural connection able to develop predetermined discrete variable friction forces at target design displacement levels. The innovative connection is termed Modified Friction Device (Modified FD).
Kaixin Chen   +2 more
doaj   +1 more source

Molecular dynamics simulations of interfacial nanomechanics in Al/Ni structures: Adhesion, friction, and tension [PDF]

open access: yesAIP Advances
Composite materials are widely utilized across various technological fields, including, but not limited to, the automotive and aerospace industries. Their performance is largely dictated by the interfacial mechanics of adhesion and friction between the ...
Olanrewaju Aluko, Yasser Aboelkassem
doaj   +1 more source

Multiscale Structural Mechanics of Rotary Shaft Seals: Numerical Studies and Visual Experiments

open access: yesLubricants, 2023
Although rotary shaft seals have been used successfully in many industrial applications for decades, their tribological behavior is still not completely understood.
Jeremias Grün, Marco Gohs, Frank Bauer
doaj   +1 more source

Forward and inverse problems in the mechanics of soft filaments [PDF]

open access: yesRoyal Society Open Science, 2018
Soft slender structures are ubiquitous in natural and artificial systems, in active and passive settings and across scales, from polymers and flagella, to snakes and space tethers. In this paper, we demonstrate the use of a simple and practical numerical
M. Gazzola   +3 more
doaj   +1 more source

EINSTAIN AND FRETTING. BULGAKOV AND QUANTUM MECHANICS. Part 1 [PDF]

open access: yesНанотехнологии в строительстве, 2013
Mathematical and tribophysical models based on the increased accuracy of determining physical and mechanical characteristics of materials and aimed at creation of competitive technologies in the field of quantum mechanics applications are considered.
IVASYSHIN Henrich Stepanovich
doaj  

Implementation of Dahl’s dynamic friction model to contact mechanics of elastic solids [PDF]

open access: yesSN Applied Sciences, 2021
AbstractThis study presents an analytical method for the solution of dynamic frictional contact problem between a rigid punch and an isotropic elastic solid. Rigid flat punch moves over the isotropic elastic solid at a constant subsonic speed and friction force develops based on Dahl’s friction law instead of Coulomb’s dry friction law.
openaire   +1 more source

Mechanical Properties of Frozen Glacial Tills due to Short Periods of Thawing

open access: yesFrontiers 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
doaj   +1 more source

Technological features of production of copper-based composites reinforced with cast iron granules by means of casting

open access: yesЛитьë 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
doaj   +1 more source

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