Results 21 to 30 of about 1,646 (241)

Occurrence of plastic collapse under ratcheting due to gravity and seismic loading

open access: yesMechanical Engineering Journal, 2022
The most dominant failure mode of piping components under seismic loading is fatigue failure with ratcheting. While it was confirmed via the experimental tests in the past, the Primary stress limit is applied to seismic loading to prevent plastic ...
Satoru KAI   +2 more
doaj   +1 more source

Rate-dependent ratcheting characteristics of high density polyethylene subjected to cyclic pulsating compression

open access: yesPolymer Testing, 2023
Monotonic and pulsating cyclic compression tests were performed systematically based on high density polyethylene (HDPE). The compressive creep behaviors were further implemented to compare with the ratcheting deformation under the same peak stress level.
Peishan Ding, Xiaotao Zheng, Linwei Ma
doaj   +1 more source

Ratchet behavior in nonlinear Klein-Gordon systems with pointlike inhomogeneities [PDF]

open access: yesPhysical Review E, 2005
We investigate the ratchet dynamics of nonlinear Klein-Gordon kinks in a periodic, asymmetric lattice of point-like inhomogeneities. We explain the underlying rectification mechanism within a collective coordinate framework, which shows that such system behaves as a rocking ratchet for point particles.
Morales-Molina, Luis   +2 more
openaire   +4 more sources

Investigation on uniaxial ratcheting fatigue behaviors and microstructure evolution of ultrafine-grained 6061 aluminum alloy

open access: yesJournal of Materials Research and Technology, 2022
The motivation of the present study is to explore ratcheting-fatigue behavior and the corresponding micro-deformation mechanism of ultrafine-grained aluminum alloys 6061 (UFG AA6061) under two stress-controlled low-cycle fatigue (LCF) loading modes, i.e.,
Teng Sun   +6 more
doaj   +1 more source

Experimental Observation on Viscoplastic Behavior of SUS304. Creep and Ratchetting Behavior.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1993
A unified constitutive model which can predict cyclic plasticity, uniaxial and biaxial ratchetting, creep, and stress relaxation is required by designers of aeronautic equipment, nuclear reactors and so on. Detailed experimental observation of considering viscoplastic behavior of materials must be carried out to construct a unified constitutive model ...
Sasaki, Katsuhiko, Ishikawa, Hiromasa
openaire   +2 more sources

Low cycle fatigue and ratcheting failure behavior of AH32 steel under uniaxial cyclic loading

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
In this paper, the low cycle fatigue failure and ratcheting behavior, as well as their interaction of AH32 steel were experimentally investigated under uniaxial cyclic loading.
Qin Dong, Ping Yang, Geng Xu
doaj   +1 more source

A Cyclic Plasticity Model with Martensite Transformation for S30408 and Its Finite Element Implementation

open access: yesApplied Sciences, 2020
The ability of the constitutive model to simulate the ratcheting behavior of metastable austenitic stainless steel S30408 is significant to ensure the safety of the liquefied natural gas (LNG) semi-trailer tanks in the lightweight process of the inner ...
Yanan Chen   +5 more
doaj   +1 more source

Depth-dependent ratcheting strains of young and adult articular cartilages by experiments and predictions

open access: yesBioMedical Engineering OnLine, 2019
Background Ratcheting strain is produced due to the repeated accumulation of compressive strain in cartilage and may be a precursor to osteoarthritis.
Li-Lan Gao   +5 more
doaj   +1 more source

Ratcheting Droplet Pairs [PDF]

open access: yes, 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
core   +2 more sources

Ratcheting Simulation of a Steel Pipe with Assembly Parts under Internal Pressure and a Cyclic Bending Load

open access: yesApplied 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
doaj   +1 more source

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