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Title: Averaging of elastic constants for polycrystals

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4993443· OSTI ID:1407891
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Many materials of interest are polycrystals, i.e., aggregates of single crystals. Randomly distributed orientations of single crystals lead to macroscopically isotropic properties. Here in this paper, we briefly review strategies of calculating effective isotropic second and third order elastic constants from the single crystal ones. Our main emphasis is on single crystals of cubic symmetry. Specifically, the averaging of third order elastic constants has not been particularly successful in the past, and discrepancies have often been attributed to texturing of polycrystals as well as to uncertainties in the measurement of elastic constants of both poly and single crystals. While this may well be true, we also point out here shortcomings in the theoretical averaging framework.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1407891
Alternate ID(s):
OSTI ID: 1399293
Report Number(s):
LA-UR-17-24288; TRN: US1703059
Journal Information:
Journal of Applied Physics, Vol. 122, Issue 14; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

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Cited By (6)

Properties of dislocation drag from phonon wind at ambient conditions text January 2019
Fourth-order elastic moduli of polycrystals journal October 2019
Dislocation drag from phonon wind in an isotropic crystal at large velocities journal December 2019
Properties of Dislocation Drag from Phonon Wind at Ambient Conditions journal March 2019
Dynamical spin phenomena generated by longitudinal elastic waves traversing CoFe 2 O 4 films and heterostructures journal December 2019
Mesomechanical Modeling and Numerical Simulation of the Diffraction Elastic Constants for Ti6Al4V Polycrystalline Alloy journal October 2018

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