Results 21 to 30 of about 11,866,665 (347)

Numerical Investigation of Flow and Structural Characteristics of a Large High-Head Prototype Pump–Turbine during Turbine Start-Up

open access: yesEnergies, 2023
Transient processes that occur in pumped storage power plants can cause high-pressure conditions, which in turn can result in vibrations in the pump–turbine structure and even damage to structural components.
Xilong Yin   +4 more
doaj   +1 more source

Coal and rock dynamic disaster analysis in Huainan Mining Area based on key stratum control principle

open access: yesMeikuang Anquan, 2021
The dynamic disaster induced by mining disturbance is a major problem that affects coal mine safety production. The root cause lies in the large amount of elastic energy in the original rock.
GAN Lintang
doaj   +1 more source

A pileup of screw dislocations against an inclined bimetallic interface [PDF]

open access: yesTheoretical and Applied Mechanics, 2017
Pileups of screw dislocations against an inclined bimetallic interface are considered. It is assumed that differently oriented pileups are either under the same remote uniform loading, or under the same resolved shear stress along the pileup direction ...
Lubarda Vlado A.
doaj   +1 more source

Fatigue Behaviour of Aluminium Members with Different Notch Root Shapes

open access: yesBuildings, 2022
In unitised curtain walls, the transfer of horizontal loads, mainly wind loads, from the upper into the lower unit is achieved through the head/notch interlocking connection.
Nebojša Buljan   +3 more
doaj   +1 more source

Simulation of Tensile Stress Concentration Evaluation using Finite Element Performance [PDF]

open access: yes, 2019
This paper present the investigation on tensile behavior of syntactic foam using finite element analysis (FEA). Tensile properties which is important to discover especially for isotropic materials such syntactic foam.
Epaarachchi, Jayantha   +2 more
core   +1 more source

The Influence of Mechanical Stress Micro Fields around Pores on the Strength of Elongated Etched Membrane

open access: yesMembranes, 2022
The investigation of the mechanical properties of polymer track-etched membranes (TMs) has attracted significant attention in connection with the extended region of their possible applications. In the present work, the mechanical stress fields around the
Venera Gumirova   +4 more
doaj   +1 more source

Stress Concentrations in Weak Snowpack Layers and Conditions for Slab Avalanche Release

open access: yesGeophysical Research Letters, 2018
Dry‐snow slab avalanches release due to the formation of a crack in a weak layer buried below cohesive snow slabs, followed by rapid crack propagation.
J. Gaume   +3 more
doaj   +1 more source

Weld toe stress concentrations in multi-planar stiffened tubular KK joints [PDF]

open access: yes, 2009
This paper reports a parametric stress analysis of various configurations of rack plate stiffened multi-planar welded KK joints using the finite element method.
Woghiren, C. O., Brennan, Feargal P.
core   +1 more source

Associations between stress, resources, and hair cortisol concentration in teachers. [PDF]

open access: yes, 2023
Challenging interactions are the main source of teacher' stress in the classroom. We investigated the association of chronic stress and characteristics of teacher-student interactions with teachers' Hair Cortisol Concentration (HCC).
Fabienne Kühne   +11 more
core   +1 more source

Crack initiation site at the interface between a nano-component and substrate

open access: yesMechanical Engineering Journal, 2014
In order to determine the effect of triple junction on the crack initiation, we use the finite element method to investigate the effect of misorientation between Cu grains on the stress concentration near the triple junction in comparison to that near a ...
Van Lich LE   +3 more
doaj   +1 more source

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