Results 11 to 20 of about 5,906 (214)
Ratcheting behavior of Eurofer97 at 550 °C
Nuclear 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
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CRYOGENIC RATCHETING OF PRESTRAINED AUSTENITIC STAINLESS STEEL S30408
Jixie 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
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Numerical simulation of ratcheting and fatigue behaviour of mitred pipe bends under in-plane bending and internal pressure [PDF]
, 2013 This paper investigates the ratcheting and fatigue behaviour of 90 degree single unreinforced mitred pipe bends subjected to a cyclic in-plane closing moment with a non-zero mean value and constant internal pressure. An experiment was conducted to induce
Wood, James +3 more
core +4 more sources
The Bree problem with different yield stresses on-load and off-load and application to creep ratcheting [PDF]
, 2014 The ratchet boundaries and ratchet strains are derived for the Bree problem and an elastic perfectly plastic material with different yield stresses on-load and off-load.
Chen, Haofeng +2 more
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Ratchet analysis of structures under a generalised cyclic load history [PDF]
, 2014 This paper introduces a new approach based upon the Linear Matching Method in order to obtain the ratchet limit of structures subjected to an arbitrary thermo-mechanical load history. This method varies from the traditional Linear Matching Method ratchet
Lytwyn, Michael +2 more
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Optimal Ratcheting of Dividends in a Brownian Risk Model [PDF]
, 2020 We study the problem of optimal dividend payout from a surplus process governed by Brownian motion with drift under the additional constraint of ratcheting, i.e. the dividend rate can never decrease.
Muler, Nora +2 more
core +1 more source
Ratcheting Droplet Pairs [PDF]
, 2018 Millimetric droplets may be levitated on the surface of a vibrating fluid bath. Eddi et al. [Europhys. Lett. 82, 44001 (2008)] demonstrated that when a pair of levitating drops of unequal size are placed nearby, they interact through their common ...
Galeano Rios, Carlos +3 more
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Ratcheting Behavior of Intervertebral Discs Under Cyclic Compression: Experiment and Prediction
Orthopaedic Surgery, 2019 Objective To evaluate the ratcheting behavior of intervertebral discs (IVD) by experiments and theoretical study. Method The lumbar spines of sheep were obtained at a local slaughterhouse, and the IVD was processed with upper and lower vertebral bodies ...
Chun‐qiu Zhang +6 more
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Ratcheting occurrence conditions of piping under sinusoidal excitations
Mechanical Engineering Journal, 2020 Ratcheting is one of the dominant failure modes under excessive earthquakes and may cause extreme failures of structures (e.g., collapse). We focused on clarifying the ratcheting mechanism of piping under sinusoidal excitations.
Jinqi LYU +3 more
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Applied Sciences, 2019 The ratcheting behavior of a steel pipe with assembly parts was examined under internal pressure and a cyclic bending load, which has not been seen in previous research.
Hongwei Yang, Ying Dai, Pengfei He
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