Calibration of a strain path change model for a dual phase steel

Hérault, Diane; Thuillier, Sandrine; Lee, Shin-Yeong; Manach, Pierre‐Yves; Barlat, Frédéric

doi:10.1016/j.ijmecsci.2020.106217

Cited by 17 publications

(11 citation statements)

References 51 publications

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“…18a. For each case, the response of 600DP is compared to experimental data from Hérault et al [5] on a similar DP steel in Figs. 17b and 18b, respectively.…”

Section: Stress-strain Behaviour Under Load Path Changementioning

confidence: 99%

“…To evaluate how the Bauschinger effect is influenced by the microstructure, the Bauschinger effect ratio (BER), in which the Fig. 17 a) Stress-strain curves in forward-reverse shear predicted by RVE simulations for DP steels and b) predicted stress-strain curves for 600DP compared to experimental data from Hérault et al [5] back stress is used and made dimensionless, is defined by [59][60][61]:…”

Section: Stress-strain Behaviour Under Load Path Changementioning

confidence: 99%

“…The microstructure is obtained by specific control of the selection of alloying elements and the thermomechanical processes, leading to various grades with different microstructural and mechanical properties [1]. The microstructure of DP steels has important effects not only on the strength and ductility, but also on the anisotropic stress-strain behaviour observed under strain path changes [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the individual responses of ferrite and martensite might be determined by either empirical models or physically based models. While the empirical models fairly well predict the response of DP steel in specific conditions [5,15,16,43,44], they depend heavily on calibration tests relevant for the given application. The physically based models, which are formulated based on the dislocation theory, are less dependent on calibration tests.…”

Section: Introductionmentioning

confidence: 99%

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A numerical study on the effects of DP steel microstructure on the yield locus and the stress–strain response under strain path change

et al. 2023

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The mechanical response of dual phase (DP) steel exhibits a complex dependence on the microstructure. The chemical composition and microstructure characteristics of the phases have significant effects on the contrast between the response of the phases, which affects, not only the strength and ductility, but also the anisotropic response of DP steel under strain path changes. In this work, extended dislocation-based models of the ferrite and martensite phases of DP steel are proposed and used in a finite element based representative volume element approach to account for the contrast between the local response of the phases. The flow stress of each phase is computed as a function of the amount of substitutional and interstitial solute elements and the microstructural characteristics of the phase. Particular attention is paid to the phase model of the martensite phase. The model parameter controlling the storage of dislocations is related to the carbon content, which appears to be the most important parameter affecting the strength of martensite and its contrast with the local response of the ferrite phase. The model predicts a significant effect of the contrast between the local responses of the phases and the microstructure characteristics of each phase on the yield locus after prestraining and on the stress–strain behaviour after strain path change, i.e., forward-reverse shear loading and cyclic uniaxial tension–compression loading.

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“…18a. For each case, the response of 600DP is compared to experimental data from Hérault et al [5] on a similar DP steel in Figs. 17b and 18b, respectively.…”

Section: Stress-strain Behaviour Under Load Path Changementioning

confidence: 99%

Section: Stress-strain Behaviour Under Load Path Changementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A numerical study on the effects of DP steel microstructure on the yield locus and the stress–strain response under strain path change

et al. 2023

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“…Experimental databases involving tensile, simple shear and hydraulic bulging tests have been presented for several sheet materials, including mild steel, dual phase steel DP 500, [ 57,58 ] aluminium alloy 6022 [ 4 ] and dual phase steel DP 600. [ 59 ] The quality of the strain field was analysed by digital image correlation, showing that translational simple shear tests give a kinematics close to the theoretical one. [ 60 ]…”

Section: Quasi‐homogeneous Testsmentioning

confidence: 99%

Testing methodologies for the calibration of advanced plasticity models for sheet metals: A review

Rossi

Lattanzi

Morichelli

et al. 2022

Strain

Self Cite

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Numerical simulations have become essential in engineering and manufacturing processes involving plasticity. The reliability and effectiveness of the simulations depend strongly on the accuracy of the adopted constitutive model. Accordingly, in recent years, an increasing interest is pointed towards experimental procedures and characterization methods that can be used to identify the constitutive parameters of advanced plasticity models, which allow to simulate properly the plastic behaviour of complex materials like, for instance, high strength steel. This paper provides a thorough review of the current stateof-the-art, looking at both academia and industry. The available methodologies can be subdivided in two main areas: quasi-homogeneous material tests with analytical or numerical post-treatment of the experimental data and heterogeneous tests coupled with inverse methods for parameter identification. For each method, a brief description and references to norms and articles is provided, illustrating the advantages and the disadvantages.

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An asynchronous parallel high-throughput model calibration framework for crystal plasticity finite element constitutive models

Tran

Lim

2023

Comput Mech

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Calibration of a strain path change model for a dual phase steel

Cited by 17 publications

References 51 publications

A numerical study on the effects of DP steel microstructure on the yield locus and the stress–strain response under strain path change

A numerical study on the effects of DP steel microstructure on the yield locus and the stress–strain response under strain path change

Testing methodologies for the calibration of advanced plasticity models for sheet metals: A review

An asynchronous parallel high-throughput model calibration framework for crystal plasticity finite element constitutive models

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