Constitutive model calibration for railway wheel steel through tension–torsion tests

Fedele, Roberto; Filippini, Mauro; Maier, G.

doi:10.1016/j.compstruc.2004.10.006

Cited by 26 publications

(12 citation statements)

References 33 publications

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“…This shows that good agreement can be obtained if particular attention is paid to the material characterization. In fact, Fedele et al [21] showed that a material characterization carried out by means of uniaxial stress tests is not always effective in different loading conditions. The procedure introduced in this paper is a possible method for correct material characterization, but further experimental confirmation is necessary for its validation.…”

Section: Model Validation and Discussionmentioning

confidence: 99%

A simplified non-linear kinematic hardening model for ratchetting and wear assessment in rolling contact

Mazzù

2008

The Journal of Strain Analysis for Engineering Design

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A model for plasticity assessment in rolling contact is introduced, aimed at simulating the effect of the application of thousands of load cycles in a reasonable time. It is based on the non-linear kinematic and isotropic hardening model of Lemaitre and Chaboche in a simplified formulation suitable for contact problems and allows the calculation of accumulated plastic strain under the contact surface. Wear is introduced as an independent phenomenon, interacting with the plasticization process by removing material layers from the surface and modifying during the load process the stresses which each point is subjected to. The typical material responses to cyclic loading (elastic shakedown, plastic shakedown, and ratchetting) can be obtained by application of the present method; moreover, the effect of wear in stabilizing the strain field for a large number of cycles is shown. The model is validated through comparison with results obtained by other methods and by experiments

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Section: Model Validation and Discussionmentioning

confidence: 99%

A simplified non-linear kinematic hardening model for ratchetting and wear assessment in rolling contact

Mazzù

2008

The Journal of Strain Analysis for Engineering Design

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“…However, work material experiences a dominant uniaxial external loading in cutting. It is acknowledged that a biaxial or triaxial material testing such as tension-torsion method [20] is useful to determine material properties in many manufacturing processes, especially cyclic deformation processes and sheet metal forming. …”

Section: Materials Testing and Discussionmentioning

confidence: 99%

“…(12)- (20) was determined by fitting the ISV model to the stress-strain data from the tension/compression tests. Because it is very difficult to find the 20 parameters simultaneously by conventional curve fitting techniques, this was accomplished by utilizing a nonlinear square fitting technique [21].…”

Section: Materials Constant Determinationmentioning

confidence: 99%

The effect of materials testing modes on finite element simulation of hard machining via the use of internal state variable plasticity model coupled with experimental study

Anurag¹,

Guo²,

Horstemeyer³

2009

Computers & Structures

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“…Such local strategies are especially suitable for complex laboratory experiments, ad-hoc designed to generate strain and stress fields close to those expected under service [15][16][17][18]. In this respect, a careful distinction is needed between the material behavior and the observable, structural response.…”

Section: Introductionmentioning

confidence: 97%

Simultaneous Assessment of Mechanical Properties and Boundary Conditions Based on Digital Image Correlation

Fedele

2014

Exp Mech

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In this study, reference is made to a mixed numerical-experimental methodology proposed in Fedele et al. (J Mech Physics Solids 57(7):1003–1016, 2009), based on full-field kinematic measurements at the microscale provided by 2D Digital Image Correlation. The aim was to estimate mechanical properties of joints or interfaces in industrial manufacts. An adhesively bonded assembly for aerospace engineering was characterized by the above methodology, optically monitoring a small subdomain over the sample surface during non-conventional mixed mode experiments. An extension of the original approach is proposed herein, since the estimation of cohesive parameters, and the identification of the “actual” displacements to be prescribed locally along the boundary, are tackled simultaneously in a coupled framework. Due to ill-posedness and high dimensionality of the extended inverse formulation, exceeding a few thousand unknowns, recourse is made to an alternating minimization strategy. Suitable regularizing provisions are implemented, concerning the a priori regularity of boundary displacements and an equilibrium (Neumann) condition along the debonded part of the joint

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Constitutive model calibration for railway wheel steel through tension–torsion tests

Cited by 26 publications

References 33 publications

A simplified non-linear kinematic hardening model for ratchetting and wear assessment in rolling contact

A simplified non-linear kinematic hardening model for ratchetting and wear assessment in rolling contact

The effect of materials testing modes on finite element simulation of hard machining via the use of internal state variable plasticity model coupled with experimental study

Simultaneous Assessment of Mechanical Properties and Boundary Conditions Based on Digital Image Correlation

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