Results 1 to 10 of about 53,198 (137)

Free vibration and chatter stability of a rotating thin-walled composite bar [PDF]

open access: yesAdvances in Mechanical Engineering, 2018
The free vibration and chatter stability of a rotating thin-walled composite bar under the action of regenerative milling force were investigated in this article. The free vibration equations of the rotating thin-walled composite bar were presented and solved by the Galerkin method according to the derived Lagrange equation for the rotating thin-walled
Yongsheng Ren, Jingmin Ma
exaly   +3 more sources

Incremental Forming of Titanium Grade 2 Sheet by TPIF-RL Method

open access: yesInternational Journal of Automotive Science and Technology, 2021
TPIF-RL method is a new method that gives better wall thickness in incremental forming. In this method, the sheet is not fixed at the edges. Like the deep drawing process, it is compressed with a certain pressure.
Ömer Seçgin   +2 more
doaj   +1 more source

Study on confined end-regions of RC walls under monotonic and cyclic loadings [PDF]

open access: yesMATEC Web of Conferences, 2019
A study was conducted to clarify the influence of reinforcement detailing, slenderness and loading type on the capacity, damages and failure modes of confined boundary regions of reinforced concrete (RC) cantilever walls.
Taleb Rafik, Kono Susumu
doaj   +1 more source

Mathematical model of complex technical asymmetric system based on numerical-analytical boundary elements method

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
A new mathematical model of asymmetric support structure frame type is built on the basis of numerical-analytical boundary elements method (BEM). To describe the design scheme used is the graph theory. Building the model taken into account is the effect
Діна Василівна Лазарєва   +1 more
doaj   +7 more sources

Thickness Debit Effect in Creep Performance of a Ni3Al-Based Single-Crystal Superalloy with [001] Orientation

open access: yesCrystals, 2023
With the complexity of the structure of aero-engine turbine blades, the blade wall thickness continues to decrease. It is found that when the blade wall thickness decreases to a certain extent, its mechanical properties will decline significantly.
Shuangqi Zhang   +8 more
doaj   +1 more source

Cold-formed steel joints with partial warping restraint

open access: yesMagazine of Civil Engineering, 2021
The article investigates the influence of joints on the warping torsion of cold-formed steel bars. The modern warping torsion theory suggests cold-formed steel bars to be simply supported or fixed at the ends.
Ilya Selyantsev, Alexandr Tusnin
doaj   +1 more source

DYNAMIC PROBLEM FOR A THIN-WALLED BAR WITH A MONOSYMMETRIC PROFILE

open access: yesVestnik of Samara University. Natural Science Series, 2021
The paper presents an analytical solution to the dynamic problem for a thin-walled elastic rod, thecross-section of which has one axis of symmetry. The solution is constructed for an arbitrary dynamic load and two types of boundary conditions: hinged support in constrained torsion and free warping of the end sections of the rod; rigid fastening with ...
E. N. Elekina, E. A. Vronskaja
openaire   +2 more sources

Pilot scale fabrication of lanthanum tungstate supports for H2 separation membranes

open access: yesOpen Ceramics, 2022
This paper reports the fabrication of asymmetric tubular geometry lanthanum tungstate-based membranes for high temperature H2 separation applications. As starting materials, powders with the compositions La28-yW4+yO54+δ (y = 0.848), La28-yW4+yO54+δ (y ...
J. Gurauskis   +3 more
doaj   +1 more source

SENSITIVITY ANALYSIS OF INITIALLY CURVED THIN-WALLED BARS [PDF]

open access: yesStatyba, 1997
Santrauka Darbe siūloma nauja trimaccių kreivų plonasienių konstrukcijų (arba sistemų) jantrumo analizės metodika. Laikoma, kad konstrukcijos dirba tamprioje stadijoje, taciau gali patirti didelius poslinkius ir posūs. Konstrukcijos jautrumas bazinių kintamųjų (pavyzdžiui, jėgų, geometrijos ar medžiagų parametrų) pokycių atžvilgiu nustatomas ...
L. Chodor, R. Bijak
openaire   +1 more source

Algorithm of correcting bimoments in calculations of thin-walled bar systems

open access: yesMagazine of Civil Engineering, 2021
An algorithm developed for enhancing the accuracy of the calculation of frames formed by thin-walled open-section bars is presented. The existing bar models for analysis of frame systems consisting of open-section bars subjected to restrained torsion require improvement.
Serpik, Igor, Shkolyarenko, Roman
openaire   +2 more sources

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