On the modeling of the Taylor cylinder impact test for orthotropic textured materials: experiments and simulations

Maudlin, P.J.; Bingert, J. F.; House, Joel W.; Chen, S.R.

doi:10.1016/s0749-6419(98)00058-8

Cited by 108 publications

(65 citation statements)

References 20 publications

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“…Preferred texture in polycrystals can result in orientation-dependent constitutive properties (10) and can also affect damage evolution and fracture mechanisms (3).…”

Section: Visar Datamentioning

confidence: 99%

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Influence of crystallographic anisotropy on the Hopkinson fracture “spallation” of zirconium

Gray¹,

Bourne²,

Zocher³

et al. 2000

AIP Conference Proceedings

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The influence of texture on the spallation (Hopkinson fracture) of low-symmetry metals (e.g. Zr, U, or Sn) has seen limited study. In this study, the Hopkinson fracture of annealed, high-purity Zr has been probed as a function of crystallographic texture. The quasi-static yield strength of the Zr studied is ≈2.5x higher in the plate's through-thickness direction compared to that measured in-plane due to a pronounced basal texture. The pullback signals of each orientation shocked to 5 GPa were found to be insensitive to the texture, although the HEL's and the soft-recovered, incipiently-spalled samples exhibited differences in their damage evolution. The VISAR wave profiles were modeled using a 3-D finite-volume method (FVM) continuum code. The VISAR, post-spallation metallographic observations, and modeling analysis are discussed with reference to the HEL and texture.

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“…Preferred texture in polycrystals can result in orientation-dependent constitutive properties (10) and can also affect damage evolution and fracture mechanisms (3).…”

Section: Visar Datamentioning

confidence: 99%

“…(10), and use elastoplastic properties (2) for the zirconium sample and isotropic properties for the half-hard copper impactor. This flyer-plate problem was spatially discretized in three-dimensions for subsequent simulation using the time-dependent CHAD FVM code (11).…”

Section: Hugoniot Elastic Limit Analysismentioning

confidence: 99%

Influence of crystallographic anisotropy on the Hopkinson fracture “spallation” of zirconium

Gray¹,

Bourne²,

Zocher³

et al. 2000

AIP Conference Proceedings

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“…Taylor tests are often performed to confirm the plastic behavior of a material under severe strain conditions. Extremely high plastic strains and strain rates occur at the crushed end of the rod, resulting in severe local deformation [6,7]. The experimental data usually consist of measurements of its final deformed profile.…”

Section: Taylor Impact Testmentioning

confidence: 99%

Uncertainty Quantification of Simulation Codes Based on Experimental Data

Hanson

Hemez

2003

41st Aerospace Sciences Meeting and Exhibit

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We present an approach for assessing the uncertainties in simulation code outputs in which one focuses on the physics submodels incorporated into the code. Through a Bayesian analysis of a hierarchy of experiments that explore various aspects of the physics submodels, one can infer the sources of uncertainty, and quantify them. As an example of this approach, we describe an effort to describe the plastic-flow characteristics of a high-strength steel by combining data from basic material tests with an analysis of Taylor impact experiments. A thorough analysis of the material-characterization experiments is described, which necessarily includes the systematic uncertainties that arise form sample-to sample variations in the plastic behaviour of the specimens. The Taylor experiments can only be understood by means of a simulation code. We describe how this analysis can be done and how the results can be combined with the results of analyses of data from simpler materialcharacterization experiments.

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“…Preferred crystallographic or microstructural anisotropy in polycrystals can result in orientationdependent constitutive and damage properties (13) and can also affect damage evolution and fracture mechanisms (2, 10). The strong microstructural anisotropy, previously shown to produce such a dominant effect on the uniaxial-stress fracture behavior at low-and high-strain rates of 1080 steel (10), was found in this study to: a) have no influence on the shock "ring-up" and HEL of 1080 steel, while 2) significantly altering the overall magnitude of the spallation "pull-back" signal as a function of loading orientation (Fig.…”

Section: Manganin-gauge Datamentioning

confidence: 99%

Influence of Microstructural Anisotropy on the Spallation of 1080 Eutectoid Steel

Gray¹,

Bourne²,

Millett³

et al. 2002

AIP Conference Proceedings

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While the influence of crystallographic texture on elastic and plastic constitutive response has seen extensive investigation in recent years, the influence of texture on the dynamic fracture of engineering materials remains less extensively explored. In particular, the influence of anisotropy, both textural and morphological, on the spallation behavior of materials remains poorly quantified. In this study, the spallation response of 1080-steel has been studied as a function of microstructural morphological anisotropy. In this study the influence of elongated MnS stringers, resident within a crystallographically isotropic eutectoid steel, on the spallation response of 1080 steel was investigated. That of a fully-pearlitic 1080 steel loaded to 5 GPa was found to be dominated by the heterogeneous nucleation of damage normal and orthogonal to the MnS stringers. Delamination between the matrix pearlitic microstructure and the MnS stringers was seen to correlate to a significantly lower pull-back signal during transverse loading than to that parallel to the stringer axis. The "pull-back" signals and postspallation metallographic observations are discussed with reference to the influence of microstructural anisotropy on void nucleation and growth.

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On the modeling of the Taylor cylinder impact test for orthotropic textured materials: experiments and simulations

Cited by 108 publications

References 20 publications

Influence of crystallographic anisotropy on the Hopkinson fracture “spallation” of zirconium

Influence of crystallographic anisotropy on the Hopkinson fracture “spallation” of zirconium

Uncertainty Quantification of Simulation Codes Based on Experimental Data

Influence of Microstructural Anisotropy on the Spallation of 1080 Eutectoid Steel

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