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Damage-Coupled Cyclic Plasticity Model for Prediction of Ratcheting–Fatigue Behavior under Strain and Stress Controlled Ratcheting for Two Different Nuclear Pi** Steels
In this present work, a damage-coupled cyclic plasticity model has been developed for more accurate ratcheting–fatigue life estimation under strain...
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Ratcheting Assessment of Rail Steel at Elevated Temperatures in the Presence of Dynamic Strain Aging
The present study intends to evaluate the ratcheting of U75VG rail steel samples tested at different stress levels and various temperatures through a...
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Ratcheting Fatigue Behaviour of Advanced Structural Materials
The advanced power generating industries requires high operating steam temperatures and pressures, to attain higher efficiency. This led to...
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Cyclic Mean Stress Variation Effect on Pipe Ratcheting
The deformation of a straight pipeline segment under stepwise cyclic loading by internal pressure is investigated. The tests were carried out on a...
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Influence of Dynamic Strain Aging on Ratcheting Deformation Behavior of SA333 Gr-6 Steel
SA333 Gr-6 steel is a candidate material for the primary cooling system in nuclear power plants. During service, pi** components experience...
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Effect of Mean Stress on Ratcheting of Austenitic Stainless Steel (AISI 304) at Room Temperature
AbstractExperiments have been performed to investigate the strain-controlled low cyclic fatigue (LCF) behavior and cyclic behavior of ratcheting of...
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Peak Cyclic Stress and Ratcheting Response of a Low Alloy Steel for Reactor Pressure Vessel Applications
The influence of peak cyclic stress on elevated temperature ratcheting response of a low alloy steel is investigated. For this purpose, ratcheting...
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Thermal Ratcheting of Uranium Simulated with a Thermo-Elasto-Visco-Plastic Polycrystal Model
Uranium aggregates accumulate large plastic deformation during thermal cycling (ratcheting). This process is the result of highly anisotropic single...
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Investigation on the Effect of Asymmetric Cyclic Loading on Ratcheting Deformation and Bulk Texture Development in HSLA Steel
Ratcheting deformation in association with bulk texture evolution in HSLA steel is studied in this investigation. The cyclic deformation behaviors...
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On the Characteristic Features of Dislocations during Ratcheting–Creep Interaction
The present investigation systematically represents for the first time the density and role of characteristic dislocations in controlling ratcheting...
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Ratcheting Fatigue of Superalloy IN-617 Under Tensile Mean Stress at RT
IN-617 is a superalloy of nickel, primarily used as tubes of superheater, re-heater and steam generator in nuclear core because of its excellent...
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Ratcheting Response of SS316 Steel Samples with Different Notch Shapes under Various Loading Spectra
Ratcheting response of notched 316 stainless steel samples was examined under various low-high-high (LHH) and high-low-low (HLL) loading steps and...
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A Comparative Study of the Various Mean Stress-Based Fatigue Life Prediction Models for 880-Grade Indian Rail Steel in Presence of Ratcheting Phenomenon
In this work, the efficacy of various existing mean stress-based prediction models to estimate fatigue life in the presence of ratcheting phenomena...
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Influence of Pre-Ratcheting Fatigue on Tensile Behavior of Modified 9Cr-1Mo Steel at Ambient Temperature
Modified 9 Cr-1Mo steel is a material of prime significance in power plants used for components of steam generation units. The phenomenon of...
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Molecular dynamics simulation-based study of creep–ratcheting behavior of nanocrystalline aluminum
In the present study, molecular dynamics simulations have been performed to investigate the creep–ratcheting deformation behavior of nanocrystalline...
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Fatigue limit assessment of a 6061 aluminum alloy based on infrared thermography and steady ratcheting effect
To quickly predict the fatigue limit of 6061 aluminum alloy, two assessment methods based on the temperature evolution and the steady ratcheting...
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Low-Cycle Fatigue and Ratcheting Lifetime Estimation of a 7050-T6 Aluminum Alloy
Low-cycle fatigue properties and uniaxial ratcheting behavior of a 7050-T6 aluminum alloy were investigated by a non-symmetric cycle stress tests at...
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Effect of Strain Ratio on Fatigue Model of Ultra-fine Grained Pure Titanium
The ultra-fine grained (UFG) pure titanium was prepared by equal channel angular pressing (ECAP) and rotary swaging (RS). The strain controlled low...
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Uniaxial Ratcheting Behavior of a Weather-Resistant Rail Steel: Effect of Mean Stress and Stress Amplitude
Uniaxial ratcheting behavior of a weather-resistant rail steel belonging to 60 kg/m 90-UTS variety was studied in true stress control mode with...
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Pre-ratcheted Tensile Properties of Nickel Base Alloy IN-617 at RT
In advanced ultra-super-critical power plants, Inconel (IN)-617, a nickel base superalloy, is regarded as a material of primary significance. The...
