Results 221 to 230 of about 2,469 (272)
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Ratcheting behavior of pressurized-bending elbow pipe after thermal aging

International Journal of Pressure Vessels and Piping, 2019
Z2CND18.12N austenitic stainless steel elbow pipes were studied experimentally under reversed in-plane load of 20 kN and constant pressure of 17.5 MPa after thermal aged 1000 h and 2000 h respectively at the same thermal aging temperature of 500 ...
Caiming Liu, S. Shi, Yebin Cai, Xu Chen
semanticscholar   +1 more source

Ratchet-type micro-hydraulic actuator to mimic muscle behavior

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
Piezo actuators are usually found in applications where high precision, high stiffness, but small displacement are required. This makes them the actuation principle of choice for many microand nano-positioning applications. In contrast, animal and human muscles have a comparatively small stiffness, but long displacements.
Andreas Gödecke   +2 more
openaire   +1 more source

Molecular dynamics simulation on creep-ratcheting behavior of columnar nanocrystalline aluminum

Journal of Molecular Graphics and Modelling, 2023
Creep-ratcheting deformation behavior of columnar nanocrystalline (NC) Al varying in grain sizes have been studied using molecular dynamics simulations at three different temperatures (300 K, 467 K, and 653 K). The underlying deformation mechanisms of columnar NC Al for two stress ratios of ratcheting are also evaluated in this study.
Pokula Narendra Babu, Snehanshu Pal
openaire   +2 more sources

Ratcheting in cyclic plasticity, part II: Multiaxial behavior

International Journal of Plasticity, 1992
Abstract Part II is concerned with time-independent ratcheting of materials under biaxial, cyclic loading histories. Carbon steel 1026 (heat-treated) tubes were tested under constant internal pressure and two axial loading histories. In the first set of experiments, the tubes were axially cycled in a strain symmetric fashion.
Tasnim Hassan   +2 more
openaire   +1 more source

The ratchet, tautness, and managerial behavior in soviet-type economies

European Economic Review, 1987
Suppose a manager receives a fixed bonus for reaching a target plus an overfulfillment reward. Each period the target is fixed by the manager's superiors in a manner that takes into account past performance. This is the ratchet. Managers facing this incentive scheme will choose an activity level which takes into account the dynamic effects of current ...
James A. Bain   +3 more
openaire   +1 more source

Anisotropic tensile and ratcheting behavior of commercially pure titanium processed via cross rolling and annealing

International Journal of Fatigue, 2019
Microstructures, crystallographic textures, and mechanical properties for two different orientations along the rolling direction (RD) and transverse direction (TD) have been investigated in grade 2 commercially pure titanium sheet processed via cross ...
A. Ghosh
semanticscholar   +1 more source

Lifetime assessment and ratcheting behavior of pressurized pipe

2014 5th Conference on Thermal Power Plants (CTPP), 2014
Pipe equipment widely are used in power plants. Many studies have been devoted to lifetime assessmentof pipeusing different approaches. In the present paper pipe under internal pressure and cyclic bending is studied (bending may be induced by heat). Chaboche's kinematic hardening model is used to simulate tube response in plastic zone.
openaire   +1 more source

Modeling of ratcheting behavior under multiaxial cyclic loading

Acta Mechanica, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, X, Kim, KS
openaire   +3 more sources

Effect of sintering temperature on ratcheting-fatigue behavior of nanosilver sintered lap shear joint

Soldering & Surface Mount Technology
Purpose The paper aims to study the effect of sintering temperature on the microstructure, shear strength and ratcheting fatigue life of nanosilver sintered lap shear joint. In addition, the Gerber model is used to predict the ratcheting fatigue lives of
D. Fang   +6 more
semanticscholar   +1 more source

Ratcheting fatigue behavior of Zircaloy-2 at room temperature

Journal of Nuclear Materials, 2016
Abstract Nuclear core components of zirconium alloys experience asymmetric stress or strain cycling during service which leads to plastic strain accumulation and drastic reduction in fatigue life as well as dimensional instability of the component.
R.S. Rajpurohit   +4 more
openaire   +1 more source

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