Results 11 to 20 of about 1,750 (215)

CRYOGENIC RATCHETING OF PRESTRAINED AUSTENITIC STAINLESS STEEL S30408

open access: yesJixie qiangdu, 2020
Taking advantage of the EUM-25 K20 tension-torsion fatigue testing machine by CARE,the cryogenic uniaxial ratcheting tests were carried out for the S30408 specimens with and without weld,and with 0%,8%,and 12% pre-strains at110 K.
LI LeiLei   +3 more
doaj   +2 more sources

Experimental and Numerical Analysis of Ratcheting Behavior of Super Duplex SAF2507 Stainless Steel Under Uniaxial Loading

open access: yesApplied Sciences
Super duplex SAF2507 stainless steel is widely used in petrochemical piping systems during the transport of substances. The pipelines are subjected to cyclic loads due to road vibration and internal pressure, which causes the ratcheting behavior. In this
Hongru Liu   +3 more
doaj   +2 more sources

Excellent Wear Resistance of a High-Speed Train Brake Disc Steel with High Hardening Ratcheting Strain Zone

open access: yesMetals, 2021
Wear resistance of brake discs has a significant effect on the safety of high-speed trains. In this work, the rolling–sliding wear resistance of a low-carbon martensitic brake disc steel was investigated.
Lei Yang   +5 more
doaj   +2 more sources

Ratcheting behavior of Eurofer97 at 550 °C

open access: yesNuclear Materials and Energy, 2018
The components in reactor are usually exposed to cyclic loading caused by frequent startups, shutdown and load fluctuations which lead to ratcheting effect.
Kuo Zhang, Jarir Aktaa
doaj   +2 more sources

Study on the Microscopic Mechanism of Axle Steel EA4T during Uniaxial Cyclic Deformation Process

open access: yesMetals, 2023
In order to reveal the dislocation evolution law of body-centered cubic axle steel EA4T during cyclic deformation and provide an experimental basis for the subsequent construction of cyclic constitutive models based on microscopic physical mechanisms ...
Xuehong Ren   +3 more
doaj   +1 more source

Ratcheting of 316L stainless steel thin wire under tension-torsion loading [PDF]

open access: yesFracture and Structural Integrity, 2016
A series of cyclic tension-torsion tests under symmetric shear strain and asymmetric axial stress control in various loading paths are conducted on 100 ?m-diameter 316L steel wires applying a micro tensiontorsion fatigue testing apparatus. The ratcheting
Sichao Fu, Dunji Yu, Xu Chen
doaj   +2 more sources

Bi-axial Strain Accumulations in Mechanical Ratcheting

open access: yesBulletin of JSME, 1984
Bi-axial strain accumulations in both axial and circumferential directions are observed in the mechanical ratcheting tests conducted by subjecting thin-walled tubular specimens to combined steady internal pressure and cyclic axial loading. The direction and magnitude of ratcheting strain are examined, as functions of maximum stress, stress ratio ...
YOSHIDA, Fusahito   +3 more
openaire   +3 more sources

Ratcheting Simulation of Additively Manufactured Aluminum 4043 Samples through Finite Element Analysis

open access: yesApplied Sciences, 2023
This study presents a finite element-based ratcheting assessment of additively manufactured aluminum 4043 samples undergoing asymmetric loading cycles.
M. Servatan   +2 more
doaj   +1 more source

Investigation of advanced strain-path dependent material models for sheet metal forming simulations [PDF]

open access: yes, 2006
Sheet metal forming processes often involve complex loading sequences. To improve the prediction of some undesirable phenomena, such as springback, physical behavior models should be considered.
BALAN, Tudor   +5 more
core   +1 more source

Research on thermomechanical fatigue life prediction of regenerative cooling thrust chamber

open access: yesXibei Gongye Daxue Xuebao, 2022
The ratcheting effect of the liner wall structure in the thrust chamber of liquid rocket engine under cyclic load is studied, and its service life is predicted.
HUANG Junfeng   +4 more
doaj   +1 more source

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