Results 41 to 50 of about 104,798 (304)

Three-Point Bending Fatigue Test of TiAl6V4 Titanium Alloy at Room Temperature

open access: yesAdvances in Materials Science and Engineering, 2019
A polycrystalline alpha-beta TiAl6V4 alloy in the annealed condition was used for the three-point bending fatigue test at frequency f∼100 Hz. The static preload Fstat. = −15 kN and variable dynamic force Fdyn. = −7 kN to −13.5 kN were set as fatigue test
Juraj Belan   +3 more
doaj   +1 more source

αSiC - βSiC - graphene composites

open access: yesScientific Reports, 2023
In this study, the mechanical properties of the pressureless sintered samples of α-SiC based composite containing 0–3 wt.% graphene and 0–15 wt.% nano β-SiC were investigated. Simultaneous usage of nano β-SiC and graphene and transformation of β-SiC (3C)
Ali Razmjoo   +2 more
doaj   +1 more source

Study of mechanisms of crack formation on tungsten composites using the three-point method

open access: yesVìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2022
The aim of this study was evaluated the ductile-to-brittle transition temperature (DBTT) and microstructure of miniaturized tungsten composites by three point bending method.
M.V. Lebedieva   +3 more
doaj   +1 more source

Three point bend creep testing of carbon/epoxy [PDF]

open access: yes, 1990
This study provides data to verify theoretical models for predicting and characterizing viscoelastic behavior of fiber composites. Since performing uninterrupted creep tests for years at a time was not feasible, creep behavior was accelerated with elevated temperatures.
openaire   +2 more sources

A comparison of plastic collapse and limit loads for single mitred pipe bends under in-plane bending

open access: yes, 2010
This paper presents a comparison of the plastic collapse loads from experimental in-plane bending tests on three 90 degree single un-reinforced mitred pipe bends, with the results from various 3D solid finite element models.
J. Wood   +7 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

open access: yesFEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel   +8 more
wiley   +1 more source

Three-point bending tests-Part I: Mathematical study and asymptotic analysis

open access: yesMathematical Methods in the Applied Sciences, 2011
The goal of this work is to study the static behaviour of a three-dimensional elastic beam when is subjected to a three-point bending test. In the rst part, under suitable compatibility conditions on the applied forces and on the geometry of the beam, we will prove the existence of a unique solution for the associated contact elastic problem; these ...
Quintela, Peregrina   +1 more
openaire   +3 more sources

Three-Point Bending Test for Three Different Bolt Diameters [PDF]

open access: yesJournal of Engineering & Technological Advances, 2019
Timber is one of the oldest materials used as main structural element prior concrete and steel which have greater ability to sustain load. The greater demand for timber as construction materials, the wood engineering introduced a new timber type called Engineered Wood Product (EWP).
Nor Jihan Abd Malek, Sadiq Azizi Othman
openaire   +1 more source

Extracting nanowire mechanical properties from three-point bendig test

open access: yes, 2010
A new adhesive receding contact model is presented in this paper for the nanowire in three-point bending test. Because of its flexurality, the nanowire in test may lift-off/separate from its supporting elastic medium, which can dramatically change the ...
Liu Y, 张吟, Liu, Y.
core   +1 more source

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