Results 11 to 20 of about 11,866,665 (347)

Surface Roughness-Induced Stress Concentration [PDF]

open access: yesTribology letter, 2023
When a body is exposed to external forces large local stresses may occur at the surface because of surface roughness. Surface stress concentration is important for many application and in particular for fatigue due to pulsating external forces.
B. Persson
semanticscholar   +1 more source

An analytical approach to calculate stress concentration factors of machined surfaces

open access: yesInternational Journal of Mechanical Sciences, 2021
Machining operations affect the properties of the final surface layer, and these can impact on its functional performance, particularly on fatigue behaviour.
I. Perez   +4 more
semanticscholar   +1 more source

Coupling control on pillar stress concentration and surface cracks in shallow multi-seam mining

open access: yes, 2021
In order to ensure safe mining and reduce surface damage in shallow multi-seam mining, the failure characteristics of interburden strata with different coal pillars offset distances between pillars in the upper and lower seams, the distribution ...
Qingxiang Huang   +3 more
semanticscholar   +1 more source

Large-Size Suspended Mono-Layer Graphene Film Transfer Based on the Inverted Floating Method

open access: yesMicromachines, 2021
Suspended graphene can perfectly present the excellent material properties of graphene, which has a good application prospect in graphene sensors. The existing suspended graphene pressure sensor has several problems that need to be solved, one of which ...
Qin Wang   +7 more
doaj   +1 more source

Influence of the Friction Coefficient on the Stress Distributions and Contact Pressure in Press-Fits via Finite Element Analysis

open access: yesLubricants, 2023
Press fits are a simple and effective method for assembling a shaft into a hub for different applications in the mechanical engineering field. This method consists of forcing to pass a shaft into a hub via axial insertion.
Eulalia Izard   +3 more
doaj   +1 more source

Investigation of Stress Concentration Zones in FEM-Based Design of Welded Plated Structures

open access: yesBuildings, 2023
The numerical model-based design is commonly applied to steel structures using advanced numerical models and analysis. These models often contain stress concentration zones, which can cause problems for designers within the evaluation process.
Erzsébet Bärnkopf   +2 more
doaj   +1 more source

Experimental and Numerical Investigation of the Mesoscale Size Effect in Notched Woven Composites

open access: yesApplied Sciences, 2023
The uniaxial strength of 2 × 2 twill carbon fiber-epoxy composite with circular open holes is governed by the stress concentration induced by the notch, as well as by the variation of the material response with the stress localization.
Andrea Ferrarese   +5 more
doaj   +1 more source

Interpretable Machine Learning Analysis of Stress Concentration in Magnesium: An Insight beyond the Black Box of Predictive Modeling

open access: yesCrystals, 2022
In the present work, machine learning (ML) was employed to build a model, and through it, the microstructural features (parameters) affecting the stress concentration (SC) during plastic deformation of magnesium (Mg)-based materials are determined.
Russlan Jaafreh   +2 more
doaj   +1 more source

An Investigation Into the Mechanism of Rock Bursts in Mines for Tunnel-Cut Isolated Areas with Multiple Stress Fields

open access: yesFrontiers in Earth Science, 2022
Tunnels in several mines in Shaanxi Province, China, which are subject to multiple stress fields, are used as case studies to clarify the structural problems associated with rock bursts that occur in high-stress mines.
Heng Zhang   +7 more
doaj   +1 more source

Fracture resistance, failure mode and stress concentration in a modified endocrown design. [PDF]

open access: yesBiomater Investig Dent, 2020
Purpose The purpose of this study was to assess fracture resistance, failure mode and stress concentration of a modified endocrown preparation design, under axial and lateral forces.
Ghoul WE   +3 more
europepmc   +2 more sources

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