Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials

E. Loomis, D. Swift, S. R. Greenfield, S. N. Luo, Pedro Peralta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is well known that changes in material properties across an interface will produce differences in the behavior of reflected and transmitted waves. On larger spatial scales, this mesoscopic behavior can result in the roughening of an initially planar shock front after interacting with grains of different orientations. We have developed an analytical model for treating stress wave scattering at grain boundaries based on crystal plasticity. Using this technique we can predict the anisotropic elastic-plastic velocity surfaces and grain boundary scattering configuration for crystalline materials undergoing deformation by slip. Following a brief description of the model we describe laser-induced shock experiments where we have measured the surface roughening due to shock-microstructure interactions. Spatial scales of the surface roughening were observed to scale approximately with the grain size of the material, which in this case was polycrystalline Be and Cu-doped Be.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages79-82
Number of pages4
Volume1195
DOIs
StatePublished - 2009
EventConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM - Nashville, TN, United States
Duration: Jun 28 2009Jul 3 2009

Other

OtherConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM
CountryUnited States
CityNashville, TN
Period6/28/097/3/09

Fingerprint

plastics
grain boundaries
shock
stress waves
shock fronts
reflected waves
wave scattering
plastic properties
slip
grain size
microstructure
configurations
scattering
crystals
lasers
interactions

Keywords

  • Anisotropic elasticity
  • Crystal plasticity
  • Grain boundary
  • Plastic wave

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Loomis, E., Swift, D., Greenfield, S. R., Luo, S. N., & Peralta, P. (2009). Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials. In AIP Conference Proceedings (Vol. 1195, pp. 79-82) https://doi.org/10.1063/1.3295262

Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials. / Loomis, E.; Swift, D.; Greenfield, S. R.; Luo, S. N.; Peralta, Pedro.

AIP Conference Proceedings. Vol. 1195 2009. p. 79-82.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Loomis, E, Swift, D, Greenfield, SR, Luo, SN & Peralta, P 2009, Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials. in AIP Conference Proceedings. vol. 1195, pp. 79-82, Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM, Nashville, TN, United States, 6/28/09. https://doi.org/10.1063/1.3295262
Loomis E, Swift D, Greenfield SR, Luo SN, Peralta P. Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials. In AIP Conference Proceedings. Vol. 1195. 2009. p. 79-82 https://doi.org/10.1063/1.3295262
Loomis, E. ; Swift, D. ; Greenfield, S. R. ; Luo, S. N. ; Peralta, Pedro. / Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials. AIP Conference Proceedings. Vol. 1195 2009. pp. 79-82
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