Effect of cyclic plastic strain and flow stress on low cycle fatigue life of 316L(N) stainless steel

Xu, Jin-Quan; Huo, Mingchen; Xia, Ri

doi:10.1016/j.mechmat.2017.07.014

Cited by 14 publications

(6 citation statements)

References 28 publications

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“…The cyclic plastic behavior of 316L steel induced by the hysteresis loop has also been evaluated by developing a damage evolution model based on the flow stress. [11] The proposed damage model could mimic the life cycle curve behavior obtained from experimental tests well.…”

Section: Introductionmentioning

confidence: 90%

“…The ratcheting failure of 316L steel under the low-cycle fatigue tests has been studied numerically and experimentally. [11] In their work, the authors developed a numerical model based on Chaboche kinematic hardening equation and calibrated its parameters based on hysteresis and post-stabilized monotonic stress plastic-strain curves from experimental tests. They identified the Chaboche parameters by adopting two optimization approaches using particle swarm optimization and Genetic algorithms.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure-Sensitive Crystal Plasticity Modeling for Austenitic Steel and Nickel-Based Superalloy Under Isothermal Fatigue Loading

Shahmardani

Hartmaier

2023

Metall Mater Trans A

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Intermittent mechanical loads combined with high temperatures appear during the operation of turbines in jet engines or in power plants, which can lead to high-temperature fatigue or to thermomechanical fatigue. Since the assessment of fatigue properties is a complex and time-consuming process, it is essential to develop validated material models that are capable of predicting fatigue behavior, thus allowing the extrapolation of experimental results into a broader range of thermomechanical conditions. To accomplish this, two representative volume elements (RVEs), mimicking the typical microstructure of single crystal Ni-based superalloys and polycrystalline austenitic steels, respectively, are introduced. With the help of these RVEs, the temperature and deformation-dependent internal stresses in the microstructure can be taken into account. In the next step, phenomenological crystal plasticity models are implemented and parameterized for cyclic deformation of these two materials. The RVE, constitutive model, and the material parameters for the Ni-based superalloy are taken from a former study. For the austenitic steel, however, an inverse procedure has been used to identify its material parameters based on several isothermal fatigue tests in a wide temperature range. With the identified material parameters, a valid description of the isothermal fatigue behavior at different temperatures is possible. The most important conclusion from the comparison of the isothermal fatigue behavior of the two different materials is that the kinematic hardening, which is responsible for the shape of the hysteresis loops, is entirely described by the internal stresses within the typical microstructure of the Ni-based superalloy, which is modeled in a scale-bridging approach. Hence, no additional terms for kinematic hardening need to be introduced to describe the cyclic plasticity in the superalloy. For the austenitic steel, in contrast, the Ohno–Wang model for kinematic hardening needs to be considered additionally to the internal stresses in the polycrystalline microstructure to obtain a correct description of its cyclic plasticity.

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Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Microstructure-Sensitive Crystal Plasticity Modeling for Austenitic Steel and Nickel-Based Superalloy Under Isothermal Fatigue Loading

Shahmardani

Hartmaier

2023

Metall Mater Trans A

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“…Primero, como se mencionó en los apartados anteriores, el material para determinar este caso de aplicación es hierro dúctil grado 50 ASTM A572 el cual su límite de fluencia es fy= 50,000 psi y presenta un esfuerzo ultimo de resistencia de = 65,300 psi. De aquí, la determinación del límite de resistencia experimental ´ se da a través de la siguiente formula: ´= 0.5 (18) Debido al proceso de fabricación y montaje de los elementos estructurales, este límite de resistencia debe de ser modificado por factores de concentración de esfuerzos de la siguiente manera:…”

Section: Análisis De Resistencia Del Materialsunclassified

“…Sin ISSN: 2594-1925 embargo, Kim (2011) y Huang (2017) determinan los esfuerzos normales basado en pruebas experimentales en elementos estructurales, con el objetivo de determinar parámetros de experimentales de fatiga de los estos elementos. Actualmente, algunas metodologías probabilísticas de análisis de esfuerzo-resistencia parten del hecho de la existencia de este esfuerzo normal sin especificar el modo de determinación del mismo [1][2][3], [17][18][19].…”

Section: Introductionunclassified

Análisis metodológico del esfuerzo normal σyy basado en deflexión elástica

2020

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El problema en la determinación de los esfuerzos normales en una sección transversal utilizando como base la deflexión elástica, se basa en el hecho de que las metodologías existentes aún presentan carencias en su análisis. El artículo presenta un análisis de los esfuerzos normales desarrollados a partir de las cargas aplicadas sobre el elemento estructural y el desarrollo de un caso de aplicación. Asimismo, debido a que la deflexión de un elemento depende de las cargas aplicadas, entonces el análisis de los esfuerzos está basado en la deflexión elástica del componente estructural. Además, la selección del elemento estructural se basa en la normatividad de diseño de vigas para componentes estructurales. Por otro lado, el análisis del material para hacer un diseño de un componente estructural también se presenta en este artículo. Igualmente, el material presentará desgaste debido a las cargas aplicadas, entonces se realiza un análisis de fatiga basado en los esfuerzos normales.

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“…Sun et al [ 12 ] carried out the fatigue test of the nickel alloy GH4169 at 650 °C under the combination of proportional and non-proportional tension and torsion loadings, thereby establishing the damage model which could be simplified to the uniaxial Manson–Coffin equation. Xu et al [ 13 ] proposed a damage evolution model for low-cycle fatigue considering that the fatigue damage accumulation is mainly caused by cyclic plastic strain. Martins et al [ 14 ] studied the low-cycle fatigue life of bainitic steels based on the cumulative strain energy density and developed a new predictive model to estimate the fatigue life.…”

Section: Introductionmentioning

confidence: 99%

Low Cycle Fatigue Life Assessment Based on the Accumulated Plastic Strain Energy Density

Shi

Cao

et al. 2021

Materials

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The accumulated plastic strain energy density at a dangerous point is studied to estimate the low cycle fatigue life that is composed of fatigue initiation life and fatigue crack propagation life. The modified Ramberg–Osgood constitutive relation is applied to characterize the stress–strain relationship of the strain-hardening material. The plastic strain energy density under uni-axial tension and cyclic load are derived, which are used as threshold and reference values, respectively. Then, a framework to assess the lives of fatigue initiation and fatigue crack propagation by accumulated plastic strain energy density is proposed. Finally, this method is applied to two types of aluminum alloy, LC9 and LY12 for low-cycle fatigue, and agreed well with the experiments.

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Effect of cyclic plastic strain and flow stress on low cycle fatigue life of 316L(N) stainless steel

Cited by 14 publications

References 28 publications

Microstructure-Sensitive Crystal Plasticity Modeling for Austenitic Steel and Nickel-Based Superalloy Under Isothermal Fatigue Loading

Microstructure-Sensitive Crystal Plasticity Modeling for Austenitic Steel and Nickel-Based Superalloy Under Isothermal Fatigue Loading

Análisis metodológico del esfuerzo normal σyy basado en deflexión elástica

Low Cycle Fatigue Life Assessment Based on the Accumulated Plastic Strain Energy Density

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