Results 181 to 190 of about 1,119 (212)
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Ratcheting in cyclic plasticity, part II: Multiaxial behavior
International Journal of Plasticity, 1992Abstract 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
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Lifetime assessment and ratcheting behavior of pressurized pipe
2014 5th Conference on Thermal Power Plants (CTPP), 2014Pipe 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.
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Modeling of ratcheting behavior under multiaxial cyclic loading
Acta Mechanica, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, X, Kim, KS
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Ratcheting fatigue behavior of Zircaloy-2 at room temperature
Journal of Nuclear Materials, 2016Abstract 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
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Ratcheting Behavior of a Titanium-Stabilized Interstitial Free Steel
Metallurgical and Materials Transactions A, 2012Engineering stress-control ratcheting behavior of a titanium-stabilized interstitial free steel has been studied under different combinations of mean stress and stress amplitude at a stress rate of 250 MPa s−1. Tests have been done up to 29.80 pct true ratcheting strain evolution in the specimens at three maximum stress levels. It is observed that this
P. S. De +4 more
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The ratchet, tautness, and managerial behavior in soviet-type economies
European Economic Review, 1987Suppose 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
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An elasto-viscoplastic model to describe the ratcheting behavior of articular cartilage
Biomechanics and Modeling in Mechanobiology, 2018In the present work, a constitutive model for articular cartilage is proposed in finite elasto-viscoplasticity. For simplification, articular cartilage is supposed to be a typical composite composed of a soft basis and a fiber assembly. The stress tensor and free energy function are hence accordingly divided into two components.
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Tensile ratcheting behaviors of bronze powder filled polytetrafluoroethylene
Frontiers of Chemical Science and Engineering, 2013A series of tensile and ratcheting experiments for compacted polytetrafluoroethylene (PTFE) and bronze filled PTFE (PTFE/bronze) were conducted on dynamic mechanical analyzer (DMA-Q800). The effects of mean stress, stress amplitude and temperature on the ratcheting behaviors of PTFE and PTFE/bronze were investigated.
Wenjuan Xu +4 more
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Micromechanical Modeling of the Ratcheting Behavior of 304 Stainless Steel
Journal of Engineering Materials and Technology, 2016Numerical simulations of 304 austenitic stainless steel (SS304) cyclic and ratcheting responses are performed using polycrystalline plasticity models. On the basis of the polycrystalline model of Cailletaud and Pilvin (1994, “Utilisation de modèles polycristallins pour le calcul par éléments finis,” Rev. Eur. Élém. Finis, 3, pp.
Ben Naceur, I. +3 more
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Uniaxial Ratcheting Behavior of Dual-Phase Steel Sheet
Journal of Materials Engineering and Performance, 2018Uniaxial ratcheting behavior of an automotive-grade dual-phase steel sheet of 1.6 mm thickness has been investigated through engineering stress-controlled asymmetric cyclic loading experiments in the elastoplastic regime at ambient temperature (~ 28°C).
Partha Sarathi De +4 more
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