2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 7: Yang Intl. Symp. / Multiscale Material Mechanics

Editors:Kongoli F, Aifantis E, Wang H, Zhu T
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:190 pages
ISBN:978-1-987820-48-5
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Correlating the internal length scale in strain gradient plasticity theory with the microstructure of material

    Xu Zhang1; Katerina Aifantis2; Guozheng Kang3;
    1SOUTHWEST JIAOTONG UNIVERSITY, Chengdu, China; 2UNIVERSITY OF ARIZONA, Tucson, United States; 3APPLIED MECHANICS AND STRUCTURE SAFETY KEY LABORATORY OF SICHUAN PROVINCE, SCHOOL OF MECHANICS AND ENGINEERING, SOUTHWEST JIAOTONG UNIVERSITY, Chengdu, China;
    Type of Paper: Regular
    Id Paper: 241
    Topic: 1

    Abstract:

    The internal length is the governing parameter in strain gradient theories which among other things have been used successfully to interpret size effects at the microscale. It is usually introduced for dimensional consistency. However, exploring the physical mechanism of internal length scale and establishing its connection with material microstructure was at best tenuous. In the present presentation, we aimed to solve such critical problem through nanoindentation of Fe-Si bicrystals, the tension of tricrystalline and torsion of thin wires.

    Keywords:

    Dislocation; Microscale; Plasticity;

    Cite this article as:

    Zhang X, Aifantis K, Kang G. Correlating the internal length scale in strain gradient plasticity theory with the microstructure of material. In: Kongoli F, Aifantis E, Wang H, Zhu T, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 7: Yang Intl. Symp. / Multiscale Material Mechanics. Volume 7. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 117-118.