A new model of rate dependent elastic-plastic flow

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We present the results of 2D lagrangian hydrodynamic simulations of cylinder impact experiments using a recently developed model for rate-dependent elastic-plastic flow. This model, which takes advantage of empirical scaling relations in terms of melting temperature and shear modulus is consistent with the very high strain-rate behavior deduced from overdriven shock data is in good agreement with the temperature and density dependence of the flow stress where known. Calculations for uranium and copper are discussed. 12 refs., 3 figs., 2 tabs.

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Hammerberg, J.E.; Preston, D.L. & Wallace, D.C. January 1, 1991.

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We present the results of 2D lagrangian hydrodynamic simulations of cylinder impact experiments using a recently developed model for rate-dependent elastic-plastic flow. This model, which takes advantage of empirical scaling relations in terms of melting temperature and shear modulus is consistent with the very high strain-rate behavior deduced from overdriven shock data is in good agreement with the temperature and density dependence of the flow stress where known. Calculations for uranium and copper are discussed. 12 refs., 3 figs., 2 tabs.

Physical Description

Pages: (5 p)

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OSTI; NTIS; GPO Dep.

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  • 1991 American Physical Society (APS) conference on shock compression of condensed matter, Williamsburg, VA (USA), 17-20 Jul 1991

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  • Other: DE91014600
  • Report No.: LA-UR-91-2058
  • Report No.: CONF-9107105--37
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5713580
  • Archival Resource Key: ark:/67531/metadc1093145

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  • January 1, 1991

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 30, 2018, 11:51 a.m.

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Hammerberg, J.E.; Preston, D.L. & Wallace, D.C. A new model of rate dependent elastic-plastic flow, article, January 1, 1991; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1093145/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.