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Strain rate effect of high purity aluminum single crystals: experiments and simulations

Khan, Akhtar S., Liu, Jian, Yoon, Jeong Whan and Nambori, Raju 2015, Strain rate effect of high purity aluminum single crystals: experiments and simulations, International journal of plasticity, vol. 67, pp. 39-52, doi: 10.1016/j.ijplas.2014.10.002.

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Title Strain rate effect of high purity aluminum single crystals: experiments and simulations
Author(s) Khan, Akhtar S.
Liu, Jian
Yoon, Jeong WhanORCID iD for Yoon, Jeong Whan orcid.org/0000-0002-7616-5253
Nambori, Raju
Journal name International journal of plasticity
Volume number 67
Start page 39
End page 52
Total pages 14
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-04
ISSN 0749-6419
Summary In order to study the strain rate effect on single crystal of aluminum (99.999% purity), aluminum single crystals are fabricated and subjected to uniaxial compression loading at quasi-static and dynamic strain rates, i.e., from 10-4 s-1 to 1000 s-1. The orientation dependence is also investigated with single slip or multi slip. The stress-strain curves of pure Al single crystals along two orientations and at different strain rates are obtained after measuring initial orientation using the Laue Back-Reflection technique. Crystal Plasticity Finite Element Method (CPFEM) with three different single crystal plasticity constitutive models is used to simulate the deformations along two orientations under various strain-rates. The classical and two newly developed single crystal plasticity models are used in the investigation. The simulation results of these models are compared to experimental results in order to study their abilities to predict finite plastic deformation of single crystalline metal over a wide strain rate range.
Language eng
DOI 10.1016/j.ijplas.2014.10.002
Field of Research 0905 Civil Engineering
0912 Materials Engineering
0913 Mechanical Engineering
091207 Metals and Alloy Materials
Socio Economic Objective 861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30077804

Document type: Journal Article
Collection: School of Engineering
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