ISSN 2687-0568
Russian

Misfit Stress in Radial Core-Shell Nanowires with Diffuse Interface Boundaries

Authors
A.S. Khramov 1 , S.A. Krasnitckii 1, 2, 3, 4 , A.M. Smirnov 1

1 Institute of Advanced Data Transfer Systems, ITMO University, Kronverksky Pr. 49, bldg. A, St. Petersburg, 197101, Russia

2 Laboratory of Nanomaterials Mechanics and Theory of Defects, Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, Bolshoi 61, Vasil. Ostrov, St. Petersburg,199178, Russia

3 Research Laboratory of Mechanics of New Nanomaterials, Peter the Great St. Petersburg Polytechnic University, Polytekhnicheskaya 29, St. Petersburg, 195251, Russia

4 Department of Computational Methods in Continuum Mechanics, St. Petersburg State University, Universitetskaya emb. 7-9, St. Petersburg, 199034, Russia

10.17586/2687-0568-2022-4-3-28-34
Rev. Adv. Mater. Technol., 2022, vol. 4, no. 3, pp. 28–34
Abstract

The elastic models of radial core-shell nanowires with diffuse interphase boundaries are suggested. The concept of eigenstrain is employed to consider a misfit stress distribution induced by diffusive interfaces with different range of distinctness. The eigenstrain profile described by the misfit parameter is approximated by piecewise-linear, error and arctangent functions. For these approximations the elastic stresses in core-shell nanowires are analytically derived, illustrated with plots and discussed in detail.

Keywords
Core-shell nanowire; Diffuse interface; Misfit stress
Foundings

Russian Science Foundation: project No. 19-19-00617

References
Volume 4, No 3
pages 28-34
Files
History
Receive Date:  01 September 2022
Accepted Date:  03 September 2022
Available online:  30 September 2022
© 2022 ITMO University.
This is an open access article under the terms
of the CC BY-NC 4.0 license.
Metadata is available under the terms of the CC BY 4.0 license