Deformation and strain hardening behavior of powder metallurgical TRIP steel under quasi-static biaxial-planar loading

Kulawinski, Dirk; Ackermann, S.; Seupel, Andreas; Lippmann, T.; Henkel, Sebastian; Kuna, Meinhard; Weidner, Anja; Biermann, Horst

doi:10.1016/j.msea.2015.06.083

Cited by 26 publications

(5 citation statements)

References 23 publications

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“…They used specimens of this geometry to determine yield loci of sheet extra high strength steel. Similar specimen geometry was also used by Kulawinski et al (2015) for investigating the initial yield surface of a stainless steel sheet. However, the maximum strains 6 attainable in the centre area in cruciform specimens with Geometry No.…”

Section: Review Of Current Statusmentioning

confidence: 99%

Effect of cruciform specimen design on strain paths and fracture location in equi-biaxial tension

Zhang

Shao

Shi

et al. 2021

Journal of Materials Processing Technology

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Section: Review Of Current Statusmentioning

confidence: 99%

Effect of cruciform specimen design on strain paths and fracture location in equi-biaxial tension

Zhang

Shao

Shi

et al. 2021

Journal of Materials Processing Technology

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“…This method of stress determination has already been successfully used for the investigation of the static and cyclic material behavior of a TRIP steels under biaxial-planar loading at room temperature [35,36,40]. A stress calculation on the basis of the elastic unloading is not possible for the biaxial-planar in-phase TMF test, due to the changing Young's modulus during heating or cooling after the load reversal.…”

Section: Stress and Strain Calculationmentioning

confidence: 99%

Isothermal and thermo-mechanical fatigue behavior of the nickel base superalloy Waspaloy™ under uniaxial and biaxial-planar loading

Kulawinski

Weidner

Henkel

et al. 2015

International Journal of Fatigue

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“…The biaxial tensile test of metal sheet is becoming increasing popular recently in sheet metal forming industries [26,27]. As in sheet metal forming operations, the material is often subjected to deformation in more than one plane or axis.…”

Section: Experimental Details Of the Biaxial Tensile Testmentioning

confidence: 99%

Evaluation Study on Iterative Inverse Modeling Procedure for Determining Post-Necking Hardening Behavior of Sheet Metal at Elevated Temperature

Mei

Lang

Liu

et al. 2018

Metals

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The identification of the post-necking strain hardening behavior of metal sheet is important for finite element analysis procedures of sheet metal forming process. The inverse modeling method is a practical way to determine the hardening curve to large strains. This study is thus focused on the evaluation of the inverse modeling method using a novel material performance test. In this article, hot uniaxial tensile test of a commercially pure titanium sheet with rectangular section was first conducted. Utilizing the raw data from the tensile test, the post-necking hardening behavior of the material is determined by a FE-based inverse modeling procedure. Then the inverse method is compared with some classical hardening models. In order to further evaluate the applicability of the inverse method, biaxial tensile test at elevated temperatures was performed using a special designed cruciform specimen. The cruciform specimen could guarantee that the maximum equi-biaxial deformation occurs in the center section. By using the inverse modeling procedure, the hardening curves under biaxial stress state are able to be extracted. Finally the stress-strain curves obtained from the two experiments are compared and analysis studies are provided.2 of 15 point. However, many sheet forming processes usually involve large deformation and can generate strains far beyond the necking point, so the stress-strain curve up to the necking point is not sufficient for numerical simulation procedures. Generally, the available pre-necking stress-strain curves are extrapolated to large strains using different hardening models [5]. It is obvious that the predicted post-necking hardening curve greatly depends on the choice of phenomenological constitutive models and one model that is best fitted to a certain material may not suits for another [6].Recently, numerous investigations have been made to acquire the hardening curve beyond diffuse necking by many researchers [7][8][9][10][11]. The initial attempt was made by Bridgman [7], who derived a set of analytical models for the distribution of stress and strain across the diffuse necking region for a round bar. However, the correction and compensation for stress and stress values of Bridgman's method is based on the measurement of evolving geometrical parameters of the necking area, which requires much experimental effort. Ling [8] and Zhang et al. [9] extended the research of Bridgman by proposing new models for determining the post-necking hardening behavior of strip specimen with rectangular section. Other researchers [10,11] further studied the necking problem experimentally based on Bridgman's work in more sophisticated ways. Currently, a new optical-numerical measurement techniques, i.e., the Digital Image Correlation (DIC) method, is used widely for obtaining full-field information for both in-plane displacements and strains of the test specimen and has been applied by many researchers for determining the post-necking hardening curve of uniaxial test [12,13], Scheider et al. [14] investigat...

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Deformation and strain hardening behavior of powder metallurgical TRIP steel under quasi-static biaxial-planar loading

Cited by 26 publications

References 23 publications

Effect of cruciform specimen design on strain paths and fracture location in equi-biaxial tension

Effect of cruciform specimen design on strain paths and fracture location in equi-biaxial tension

Isothermal and thermo-mechanical fatigue behavior of the nickel base superalloy Waspaloy™ under uniaxial and biaxial-planar loading

Evaluation Study on Iterative Inverse Modeling Procedure for Determining Post-Necking Hardening Behavior of Sheet Metal at Elevated Temperature

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