Modeling the Cycle-Dependent Material Hardening Behavior of 508 low Alloy Steel

Mohanty, Subhasish; Soppet, W.K.; Barua, Bipul; Majumdar, S.; Natesan, K.

doi:10.1007/s11340-017-0278-y

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…Concerning the cyclic yield strength, the cyclic stress σ ′ 02 is 836.97 MPa. Under cyclic conditions, 0.2% of the residual plastic strain is usually too high of a value, therefore the cyclic stress for 0.01% of the residual plastic strain tends to provide a better adjustment [68]. This value is often named the cyclic proportional limit, σ ′ p , since the residual plastic strain level is very low.…”

Section: Monotonic and Cyclic Curvesmentioning

confidence: 99%

Monotonic and Fatigue Behaviour of the 51CrV4 Steel with Application in Leaf Springs of Railway Rolling Stock

Gomes,

Souto,

Correia

et al. 2024

Metals

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Leaf springs are components of railway rolling stock made of high-strength alloyed steel to resist loading and environmental conditions. Combining the geometric notches with the high surface roughness of its leaves, fatigue models based on local approaches might be more accurate than global ones. In this investigation, the monotonic and fatigue behaviour of 51CrV4 steel for application in leaf springs of railway rolling stock is analysed. Fatigue models based on strain-life and energy-life approaches are considered. Additionally, the transient and stabilised behaviours are analysed to evaluate the cyclic behaviour. Both cyclic elastoplastic and cyclic master curves are considered. Lastly, different fatigue fracture surfaces are analysed using SEM. As a result, the material properties and fatigue models can be applied further in either the design of leaf springs or in the mechanical designs of other components made of 51CrV4 steel.

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Section: Monotonic and Cyclic Curvesmentioning

confidence: 99%

Monotonic and Fatigue Behaviour of the 51CrV4 Steel with Application in Leaf Springs of Railway Rolling Stock

Gomes,

Souto,

Correia

et al. 2024

Metals

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“…Thus, considering a value 0.2% of residual plastic strain, σ 02 results in 769.96 MPa. In spite of the reference 0.2% being applicable for engineering practice, the cyclic yield strength computed for a 0.01% residual plastic strain provided a better adjustment in the mechanical behavior response [53], and therefore σ 01 = 578.5 MPa was considered. Considering σ 01 = 578.5 MPa, resulted in an amount of softening, R y , of −463.5 MPa.…”

Section: Cyclic Curvementioning

confidence: 99%

Cyclic Hardening and Fatigue Damage Features of 51CrV4 Steel for the Crossing Nose Design

2023

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A crossing nose is a component of railway infrastructure subject to very severe loading conditions. Depending on the severity of these loads, the occurrence of structural fatigue, severe plastic deformation, or rolling fatigue may occur. Under fatigue conditions with high plastic deformation, cyclic plasticity approaches, together with local plasticity models, become more viable for mechanical design. In this work, the fatigue behavior in strain-controlled conditions of 51CrV4 steel, applicable to the crossing nose component, was evaluated. In this investigation, both strain-life and energy-life approaches were considered for fatigue prediction analysis. The results were considered through obtaining a Ramberg-Osgood cyclic elasto-plastic curve. Since this component is subject to cyclic loading, even if spaced in time, the isotropic and kinematic cyclic hardening behavior of the Chaboche model was subsequently analyzed, considering a comparative approach between experimental data and the FEM. As a result, the material properties and finite element model parameters presented in this work can contribute to the enrichment of the literature on strain-life fatigue and cyclic plasticity, and they could be applied in mechanical designs with 51CrV4 steel components or used in other future analyses.

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“…Thus, the axial Transactions of the ASME deformation of the specimen must be measured or controlled by either frame crosshead displacement (i.e., stroke) or frame actuator position. Previously [13][14][15], we conducted PWR environment tests by controlling the crosshead displacement. To predict the strain from the crosshead displacement data of the PWR tests, we used stroke-strain mapping functions generated from in-air tests data, where the in-air tests were controlled by the same crosshead displacement used for PWR tests.…”

Section: Pressurized Water Reactor Testsmentioning

confidence: 99%

Methodology for Stress-Controlled Fatigue Test Under In-Air and Pressurized Water Reactor Coolant Water Condition and to Evaluate the Effect of Pressurized Water Reactor Water and Loading Rate on Ratcheting

Barua

Mohanty

Listwan

et al. 2018

Journal of Pressure Vessel Technology

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This work investigates the behavior of 316 stainless steel (SS) under stress-controlled low cycle fatigue loading. Several fatigue experiments are conducted under different environment such as in air at 300 C and primary loop water conditions for a pressurized water reactor (PWR). Two different loading conditions are also employed to examine the effect of stress rate on material hardening and ratcheting. During PWR water test, actuator position measurements are used to determine the strain of the specimen. Under PWR environment, 316 SS is found to ratchet to a significantly greater degree compared with in air. At slow stress rate, higher amount of cyclic hardening is observed in 316 SS, and slow stress rate increases the rate of ratcheting. Results also indicate that 316 SS exhibits asymptotic strain response at higher stress loading which can cause material to behave very differently under same stress cyclic loading.

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Modeling the Cycle-Dependent Material Hardening Behavior of 508 low Alloy Steel

Cited by 8 publications

References 15 publications

Monotonic and Fatigue Behaviour of the 51CrV4 Steel with Application in Leaf Springs of Railway Rolling Stock

Monotonic and Fatigue Behaviour of the 51CrV4 Steel with Application in Leaf Springs of Railway Rolling Stock

Cyclic Hardening and Fatigue Damage Features of 51CrV4 Steel for the Crossing Nose Design

Methodology for Stress-Controlled Fatigue Test Under In-Air and Pressurized Water Reactor Coolant Water Condition and to Evaluate the Effect of Pressurized Water Reactor Water and Loading Rate on Ratcheting

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