Results 211 to 220 of about 2,469 (272)
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Thermal Ratcheting Criteria and Behavior of Piping Elbows
Journal of Pressure Vessel Technology, 1990A thermal ratcheting test was performed using an elbow model test specimen subjected to sustained primary load and cyclic thermal transient strains. Under severe loading conditions incremental longitudinal strains are observed in the region where a circumferential angle is around ± π/9 from the side of the elbow, while the elbow cross section was ...
M. Ueda, T. Kano, A. Yoshitoshi
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, 2020
The ratcheting behavior of magnesium alloy AZ31B was investigated under controlled cyclic stress at frequencies of 0.5 Hz, 1.0 Hz and 2.0 Hz. The result showed that cyclic loading accelerates strain accumulation as compared with static creep at room ...
Baolin Wu +6 more
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The ratcheting behavior of magnesium alloy AZ31B was investigated under controlled cyclic stress at frequencies of 0.5 Hz, 1.0 Hz and 2.0 Hz. The result showed that cyclic loading accelerates strain accumulation as compared with static creep at room ...
Baolin Wu +6 more
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Ratchet-induced anisotropic behavior of superparamagnetic microdroplet
Applied Physics Letters, 2009Microscale ratchet structured surfaces were coated with nanoparticles, which resulted in anisotropic behavior of superparamagnetic microdroplet by magnetic field actuation. This ratchet structure enables superparamagnetic microdroplets to generate the anisotropic behavior through the alternative external magnetic field.
Jihua Zhang +3 more
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Modeling of the ratcheting behavior in flexible electrodes during cyclic deformation
, 2020Many flexible electrode materials with good electrochemical properties show poor sustainability due to the complex stress field inside the electrodes. Here, an analytical model is established to describe the ratcheting behaviors of the flexible electrode
Chengjun Xu +6 more
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Journal of Pressure Vessel Technology, 2020
This paper investigates ratcheting behavior of SS316 L thin-walled steel pipes subjected to cyclic internal pressure experimentally and numerically. Numerical simulations were performed using abaqus software, and nonlinear isotropic/kinematic hardening
R. Karimi, M. Shariati
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This paper investigates ratcheting behavior of SS316 L thin-walled steel pipes subjected to cyclic internal pressure experimentally and numerically. Numerical simulations were performed using abaqus software, and nonlinear isotropic/kinematic hardening
R. Karimi, M. Shariati
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Uniaxial ratcheting and failure behaviors of two steels
Theoretical and Applied Fracture Mechanics, 2005The strain cyclic characteristics, ratcheting and failure behaviors of 25CDV4.11 steel and SS304 stainless steel were experimentally studied under uniaxial cyclic tests and at room temperature. The cyclic hardening/softening features of the materials were first observed under uniaxial strain cycling; and then the ratcheting and failure behaviors of the
G.Z. Kang +4 more
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Effect of particle mass on the behavior of stochastic ratchets
Technical Physics Letters, 1998Nonlinear Brownian motion in stochastic rachets is investigated by electronic simulation methods. It is shown experimentally that it is possible to sort particles by mass using a discrete random process, binary noise, as the source of the nonequilibrium stochastic ratchets.
A. P. Nikitin, D. É. Postnov
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Ratcheting of cyclically hardening and softening materials: I. Uniaxial behavior
International Journal of Plasticity, 1994Abstract Part II of this study is concerned with ratcheting phenomena of cyclically hardening and softening materials under biaxial, cyclic loading. Two sets of biaxial experiments were performed on carbon steel 1018 and stainless steel 304 thin-walled tubes. In the first tyoe of experiment, a constant internal pressure was prescribed while the tubes
Tasnim Hassan, Stelios Kyriakides
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Transactions of the Indian Institute of Metals, 2014
The objective of this work is the study of ratcheting fatigue behavior and post fatigue tensile properties of the commercial aluminum via heat treatment like annealing and normalizing. In view of this, stress controlled fatigue tests carried out at room temperature up to 150 cycles under different combinations of mean stress and stress amplitude using ...
R. Kreethi, Preeti Verma, Krishna Dutta
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The objective of this work is the study of ratcheting fatigue behavior and post fatigue tensile properties of the commercial aluminum via heat treatment like annealing and normalizing. In view of this, stress controlled fatigue tests carried out at room temperature up to 150 cycles under different combinations of mean stress and stress amplitude using ...
R. Kreethi, Preeti Verma, Krishna Dutta
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Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths
Thin-walled structures, 2019This study examines the previous experimental results of ratcheting behavior of elbow pipe made of Z2CN18.10 austenitic stainless steel subjected to constant internal pressure and reversed in-plane bending by Chen-Jiao-Kim (CJK) kinematic hardening model
Caiming Liu +4 more
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