Unified viscoplasticity modelling for a SiMo 4.06 cast iron under isothermal low-cycle fatigue-creep and thermo-mechanical fatigue loading conditions

Bartošák, Michal; Španiel, Miroslav; Doubrava, Karel

doi:10.1016/j.ijfatigue.2020.105566

Cited by 24 publications

(7 citation statements)

References 48 publications

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“…Even though this issue is solved with a temperature history-independent formulation of the Armstrong-Frederick kinematic hardening rule based on a similarity equation under temperature variation by Ohno and Wang [10,11], their approach has not prevailed. The Chaboche-type time-and temperature-dependent plasticity models were widely applied to describe the material behavior under cyclic thermomechanical loading conditions for different materials and material classes, e.g., aluminum alloys in [12,13], forged and cast steels in [14][15][16][17], nodular cast iron in [18,19], copper in [20] and nickel-based superalloys in [21][22][23][24][25][26]. Further extensions to the Armstrong-Frederick kinematic hardening law were proposed to describe better non-proportional hardening, e.g., [24,27], strain range memory, e.g., [28,29], as well as cyclic kinematic hardening and softening, e.g., [3,30].…”

Section: Time-and Temperature-dependent Cyclic Plasticity and Modelsmentioning

confidence: 99%

Experiments and Modeling on the Stain-Controlled Time- and Temperature-Dependent Cyclic Ratchetting Plasticity of the Nickel-Based Superalloy IN100

et al. 2023

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In this paper, the time- and temperature-dependent cyclic ratchetting plasticity of the nickel-based alloy IN100 is experimentally investigated in strain-controlled experiments in the temperature range from 300 °C to 1050 °C. To this end, uniaxial material tests are performed with complex loading histories designed to activate phenomena as strain rate dependency, stress relaxation as well as the Bauschinger effect, cyclic hardening and softening, ratchetting and recovery from hardening. Plasticity models with different levels of complexity are presented that consider these phenomena, and a strategy is derived to determine the multitude of temperature-dependent material properties of the models in a step-by-step procedure based on sub-sets of experimental data of isothermal experiments. The models and the material properties are validated based on the results of non-isothermal experiments. A good description of the time- and temperature-dependent cyclic ratchetting plasticity of IN100 is obtained for isothermal as well as non-isothermal loading with models including ratchetting terms in the kinematic hardening law and the material properties obtained with the proposed strategy.

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Section: Time-and Temperature-dependent Cyclic Plasticity and Modelsmentioning

confidence: 99%

Experiments and Modeling on the Stain-Controlled Time- and Temperature-Dependent Cyclic Ratchetting Plasticity of the Nickel-Based Superalloy IN100

et al. 2023

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“…Particularly, the Chaboche unified viscoplastic constitutive model can reasonably express the stress-strain response behaviors of many materials in complex loading conditions at elevated temperatures. [27][28][29][30][31] The movement of yield surface was expressed by the nonlinear Armstrong-Frederick kinematic hardening rule 32 ; then, the rule was further modified to describe the emerging stress-strain behaviors under new loading conditions. For example, the dynamic recovery term was modified to express the ratcheting behavior of materials that can cause mean stress under symmetrical tensioncompression cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Viscoplastic constitutive model considering strain rate sensitivity under multiaxial thermomechanical fatigue loading

Shang

Chen³

et al. 2023

Fatigue Fract Eng Mat Struct

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“…In the constitutive model of cast iron, Szmytka et al 19 introduced specific flow criteria. Bartošák et al 20 improved the hyperbolic sine function flow criterion and temperature-dependent kinematic hardening equation. Later, Wu et al 21 developed a constitutive model coupling viscoplasticity and damage to accurately predict the high-temperature viscoelastic behavior of cast iron materials for exhaust pipes.…”

Section: Introductionmentioning

confidence: 99%

“…However, various material fatigue tests are needed, such as isothermal Low Cycle Fatigue (LCF) and Out-of-Phase TMF (OP-TMF). In particular, a creep-fatigue test with a long time (>300 s) of high-temperature holding 20 is needed to characterize material viscosity. In addition, for the damage life of cast iron, Gocmez et al 22 proposed a prediction method of cyclic dissipative strain energy and considered the temperature and stress correction factors to couple high temperatures (creep, oxidation) and pure fatigue damage.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies of thermal-structural behavior based on cast iron scaled cylinder head specimen

Zhang

Liang

Qiao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In order to clarify the thermal deformation and failure mechanism of the nodular cast iron cylinder head of marine diesel engines during long-term service, a high-efficiency thermal cycling experiment was conducted on scaled cylinder head specimen based on the similarity principle, and the thermal cycling load was simulated by flame heating and water spray cooling method. Then the Chaboche combined hardening model considering temperature and cumulative effect was established. The cyclic plastic behavior of the scaled specimen model during non-uniform thermal cycling was verified from transient temperature, cumulative out-of-round deformation and crack failure. Subsequently, the law of cyclic plastic deformation of specimens under thermal cycling was studied. The results showed that with the increase of the cycle number, the plastic strain of the valve bridge region of the scaled specimens accumulated gradually, showing a large amount of permanent strain of the circular hole within a maximum of 20.3 μm out-of-round deformation. The difference between the calculated and tested deformation is 1.9 μm (10.5%), which shows the excellent predictability of the numerical model. The research findings are valuable for predicting and evaluating the thermal-structural behavior of the prototype cylinder head.

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Unified viscoplasticity modelling for a SiMo 4.06 cast iron under isothermal low-cycle fatigue-creep and thermo-mechanical fatigue loading conditions

Cited by 24 publications

References 48 publications

Experiments and Modeling on the Stain-Controlled Time- and Temperature-Dependent Cyclic Ratchetting Plasticity of the Nickel-Based Superalloy IN100

Experiments and Modeling on the Stain-Controlled Time- and Temperature-Dependent Cyclic Ratchetting Plasticity of the Nickel-Based Superalloy IN100

Viscoplastic constitutive model considering strain rate sensitivity under multiaxial thermomechanical fatigue loading

Experimental and numerical studies of thermal-structural behavior based on cast iron scaled cylinder head specimen

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