Kennzeichnung des Verfestigungsverhaltens von Werkstoffen mit der Biaxialprüfung

Borsutzki, Michael; Keßler, L.; Sonne, H.-M.

doi:10.1002/9783527610310.ch23

Cited by 10 publications

(5 citation statements)

References 2 publications

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“…Fig. 2 shows examples of cruciform specimens from previous studies (Shiratori and Ikegami, 1968;Kreißig and Schindler, 1986;Ferron and Makinde, 1988;Makinde et al, 1992;Demmerle and Boehler, 1993;Boehler et al, 1994;Lin and Ding, 1995;Mü ller and Pö hlandt, 1996;Kuwabara et al, 1998;Hoferlin et al, 2000;Borsutzki et al, 2002). The cruciform specimens shown in Fig.…”

Section: Biaxial Tension Test Using Cruciform Specimensmentioning

confidence: 93%

Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations

Kuwabara

2007

International Journal of Plasticity

311

108

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Section: Biaxial Tension Test Using Cruciform Specimensmentioning

confidence: 93%

Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations

Kuwabara

2007

International Journal of Plasticity

311

108

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“…Moreover, it is not easy to create this geometry using as-received metal sheets a few mm thick, common thickness in sheet forming industry. The Type C specimens [52,128,178,222] can be made of as-received sheet materials, although (C1) type specimens [52,128] require welding for fixing thin strips (arms) to the gauge section. The merit of the Type C specimens is that it is simple to determine biaxial stress components in the gauge section by virtue of slits in the arms or welded thin strips.…”

Section: Biaxial Compression Testmentioning

confidence: 99%

Advances in anisotropy and formability

et al. 2010

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This paper presents synthetically the most recent models for description of the anisotropic plastic behavior. The first section gives an overview of the classical models. Further, the discussion is focused on the anisotropic formulations developed on the basis of the theories of linear transformations and tensor representations, respectively. Those models are applied to different types of materials: body centered, faced centered and hexagonalclose packed metals. A brief review of the experimental methods used for characterizing and modeling the anisotropic plastic behavior of metallic sheets and tubes under biaxial loading is presented together with the models and methods developed for predicting and establishing the limit strains. The capabilities of some commercial programs specially designed for the computation of forming limit curves (FLC) are also analyzed.

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“…FIGURE 2 shows examples of cruciform specimens from previous studies [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. The cruciform specimens shown in FIGURE 2(a) and (b) have a gauge section thinner than the periphery; it is not easy to create this geometry using sheet materials approximately a few mm thick, which are commonly used in sheet stamping operations in industry.…”

Section: Biaxial Tension Test Using a Cruciform Specimenmentioning

confidence: 99%

Advanced material testing in support of accurate sheet metal forming simulations

Kuwabara¹

2013

AIP Conference Proceedings

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An advanced constitutive model in the sheet metal forming simulation: the Teodosiu microstructural model and the Cazacu Barlat yield criterion AIP Conf.Abstract. This presentation is a review of experimental methods for accurately measuring and modeling the anisotropic plastic deformation behavior of metal sheets under a variety of loading paths: biaxial compression test, hydraulic bulge test, biaxial tension test using a cruciform specimen, multiaxial tube expansion test using a closed-loop electrohydraulic testing machine for the measurement of forming limit strains and stresses, combined tension-shear test, and in-plane stress reversal test. Observed material responses are compared with predictions using phenomenological plasticity models to highlight the importance of accurate material testing. Special attention is paid to the plastic deformation behavior of sheet metals commonly used in industry, and to verifying the validity of constitutive models based on anisotropic yield functions at a large plastic strain range. The effects of using appropriate material models on the improvement of predictive accuracy for forming defects, such as springback and fracture, are also presented.The hydraulic bulge test is widely used in determining the work hardening characteristics of sheet materials up to plastic strains greater than can be achieved in simple tension [3]. For an accurate determination of the stress-strain curves, the strain rate must be constant during bulging [4]. Yoshida [5] performed FE analyses for a hydraulic bulge test and clarified that the stress measurement error is less than 1 % when the experimental conditions satisfy thatradius of die cavity, D U : initial gauge length for the measurement of the radius of curvature at the apex of the bulged specimen, D H : initial gauge length for the measurement of the meridian strain at the apex of the bulged specimen, 0 t : initial thickness of test material). Biaxial Compression TestThe biaxial compression test is also valuable for sheet materials [6][7][8]. FIGURE 1(a) is a schematic diagram of biaxial compression tests using adhesively bonded sheet laminate specimens, showing how different stress states can be obtained in the S -plane [7]. The validity of the testing method can be verified using a method as shown FIGURE 1(b); the stress-strain curve measured for the biaxial compression along the RD and TD (equivalent to the uniaxial tension in the thickness direction) are in agreement with that for the uniaxial compression in the thickness direction.

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Kennzeichnung des Verfestigungsverhaltens von Werkstoffen mit der Biaxialprüfung

Cited by 10 publications

References 2 publications

Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations

Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations

Advances in anisotropy and formability

Advanced material testing in support of accurate sheet metal forming simulations

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