Results 1 to 10 of about 2,696,756 (302)

Analysis of the results adequacy of the fuselage finite-element modeling in the vicinity of a large cutout

open access: yesНаучный вестник МГТУ ГА, 2023
The issues of ensuring the reliability of the finite element models (FEM) of the fuselage in the hatch cutout zone are considered at the early aircraft design stages. The purpose and tasks of research are formulated.
A. V. Boldyrev, M. V. Pavelchuk
doaj   +1 more source

Sudden collapse of steel water tower tank due to compound openings in critical zone

open access: yesCogent Engineering, 2023
Despite previous efforts to detect concentrated stresses in structures with holes, a complete understanding of structures that contain compound openings in addition to screw holes in critical stress areas is incomplete, especially for structures that are
Rana I. K. Zaki   +2 more
doaj   +1 more source

The nature of change in the residual stress-strain state of dovetail lock joints, taking into account nonlinear strains

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022
A general algorithm for calculating residual stresses based on the method of successive loadings is presented. The process of formation of residual stresses and strains in dovetail lock joints during its loading by centrifugal forces and subsequent ...
V. S. Zhernakov   +2 more
doaj   +1 more source

Fractures in non-homogeneous rockfill materials from a micromechanics perspective [PDF]

open access: yesJournal of Hydraulic Structures, 2022
This study investigates particle breakage and cracks propagation of non-homogeneous rockfill materials, particularly conglomerates, from a microscale perspective. The conglomerate's materials were gathered from Masjed-E-Soleyman, MES, rockfill dam, Iran.
Saber Alidadi   +2 more
doaj   +1 more source

Influence of Overlying Strata Movement on the Stability of Coal in Fully Mechanized Top-Coal Caving Mining

open access: yesApplied Sciences, 2023
Overlying strata movement has an important effect on the stability of coal along goaf. In order to study the impact of overlying strata movement on the stability of coal during fully mechanized top-coal caving mining, a simulation experiment was ...
He Ren   +4 more
doaj   +1 more source

A Framework for Optimal Sensor Placement to Support Structural Health Monitoring

open access: yesJournal of Marine Science and Engineering, 2022
Offshore or drydock inspection performed by trained surveyors is required within the integrity management of an in-service marine structure to ensure safety and fitness for purpose. However, these physical inspection activities can lead to a considerable
Shen Li, Andrea Coraddu, Feargal Brennan
doaj   +1 more source

Stress-strain state of a glass panel with adhesive point fixings [PDF]

open access: yesИнженерно-строительный журнал, 2019
The article is devoted to the study on the bearing capacity of the glazing with adhesive point fixings. This article provides evaluation of such factors as applied load, edge distance, panel thickness and number of point fixtures and their influence on ...
E.N. Gerasimova   +3 more
doaj   +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

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