Application of a nonlinear kinematic-isotropic material model for the prediction of residual stress relaxation under a cyclic load

Zobec, Peter; Klemenc, Jernej

doi:10.1016/j.ijfatigue.2021.106290

Cited by 12 publications

(7 citation statements)

References 26 publications

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“…ratcheting, stress relaxation or elastic and plastic shakedown [10][11][12]. The examples of the application of the Chaboche and CIKH models are contained in [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Computational Methods of the Identification of Chaboche Isotropic-Kinematic Hardening Model Parameters Derived from the Cyclic Loading Tests

Wójcik,

Gontarz,

Skrzat

et al. 2024

Adv. Sci. Technol. Res. J.

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The Chaboche-Lemaitre combined isotropic-kinematic hardening model (CKIH) gives an overall information about the material behaviour under cyclic loading. The identification of hardening parameters is a difficult and time-consuming problem. The procedure of the parameters identification using the experimental hysteresis curve obtained in a cyclic loading test under strain control is presented in details here for a S235JR construction steel. The last stabilized cycle extracted from the hysteresis curve is required for the identification of hardening parameters. The model with three backstresses is tested here. The optimization algorithm is also used for the improvement of the agreement between experimental and numerical data. In order to include some uncertainty of experiment and the identification procedure, the authorial algorithm written on the basis of the fuzzy logic soft-computing method is applied here. The results obtained show that the identification procedure presented in this paper ensures the good agreement between the experimental tests and numerical calculations. The correct selection of parameters associated with the hardening is essential for the right description of material behaviour subject to loading in different engineering problems, including in metal forming processes.

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“…ratcheting, stress relaxation or elastic and plastic shakedown [10][11][12]. The examples of the application of the Chaboche and CIKH models are contained in [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Computational Methods of the Identification of Chaboche Isotropic-Kinematic Hardening Model Parameters Derived from the Cyclic Loading Tests

Wójcik,

Gontarz,

Skrzat

et al. 2024

Adv. Sci. Technol. Res. J.

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“…An accurate description of the effect of plastic strain on the mechanical behaviour of materials is necessary for a reliable prediction of the mechanical response beyond the elastic limit. There are many industrial applications in which plasticity plays a fundamental role, such as contact mechanics [1], fatigue analysis [2] and residual stresses' analysis [3]. In our previous paper, Ref.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Chaboche and Bouc–Wen Parameters of Quenched and Tempered Steel and Comparison of Model Predictive Capabilities

et al. 2023

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The aim of this paper is to model the elastic–plastic uniaxial behaviour of a quenched and tempered steel. The common Chaboche isotropic kinematic hardening model (CIKH) is introduced, and a physics-based procedure is proposed to determine its parameters. This procedure is based on strain- and stress-controlled tests and is focused on the stabilized cycles. The imposed cycle properties are the hysteresis area, the stress range, the slope at the inversion points, obtained from the stabilized cycles of strain-controlled tests, and the ratcheting rate extracted from a stress-controlled test. The novelty of the algorithm is to determine the hardening parameters from the global properties of the cycle rather than imposing a pointwise fitting, which is also implemented to calculate the parameters for a comparison. The Bouc–Wen model showed great flexibility in describing nonlinear behaviours, corresponding to different physical phenomena, through an appropriate tuning of its parameter values. In this paper, another optimization approach is developed to estimate the Bouc–Wen coefficients and accurately describe the same experimental cycles. The performances of the Bouc–Wen model are compared with the predictions of the Chaboche model, and a discussion comparing the techniques used to reproduce cyclic plastic behaviour is provided.

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“…Carpinteri et al [8] studied the nonlinear strain hardening constitutive relationship using the isotropic and kinematic hardening models, respectively. Zobec et al [9] combined the two cyclic hardening models to describe the hysteresis characteristics of materials. The Chaboche model [10,11] is an effective tool for evaluating cyclic elastic-plastic behavior under different loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Loading Sequence Effect on Cyclic Hysteresis Characteristics of an Al–Mg–Si Alloy

Zhou

Luo

2023

Adv Eng Mater

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Application of a nonlinear kinematic-isotropic material model for the prediction of residual stress relaxation under a cyclic load

Cited by 12 publications

References 26 publications

Computational Methods of the Identification of Chaboche Isotropic-Kinematic Hardening Model Parameters Derived from the Cyclic Loading Tests

Computational Methods of the Identification of Chaboche Isotropic-Kinematic Hardening Model Parameters Derived from the Cyclic Loading Tests

Investigation of Chaboche and Bouc–Wen Parameters of Quenched and Tempered Steel and Comparison of Model Predictive Capabilities

Influence of Loading Sequence Effect on Cyclic Hysteresis Characteristics of an Al–Mg–Si Alloy

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