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Standing wave effect and fractal structure in dislocation evolution
Li, P.; Zhang, Z. F.; Li, P (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Li, P (reprint author), Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China.; Li, P (reprint author), Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany.
2017-06-22
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume7Pages:-
AbstractTheoretical model required for the evolution of regular dislocation pattern should simultaneously take into account both static distribution and dynamic evolution of dislocation pattern. In principle, there exists a stable uniformly moving dislocation with both core and far field advancing at the same constant velocity, which suggests the existence of the traveling waves representing moving dislocation. Therefore, one new term "dislocation wave" is defined by simultaneously consisting of both an elastic wave and a dislocation in each wavefront. According to the standing wave effect, the edge dislocation segments capture mutually to form the periodic ladder structures at the nodes. These persistent slip band (PSB) ladders are not only self-organized but also self-similar dislocation patterns. The fractal dimension further reveals the intrinsic nature of crack initiation and propagation along slip bands and deformation bands.; Theoretical model required for the evolution of regular dislocation pattern should simultaneously take into account both static distribution and dynamic evolution of dislocation pattern. In principle, there exists a stable uniformly moving dislocation with both core and far field advancing at the same constant velocity, which suggests the existence of the traveling waves representing moving dislocation. Therefore, one new term "dislocation wave" is defined by simultaneously consisting of both an elastic wave and a dislocation in each wavefront. According to the standing wave effect, the edge dislocation segments capture mutually to form the periodic ladder structures at the nodes. These persistent slip band (PSB) ladders are not only self-organized but also self-similar dislocation patterns. The fractal dimension further reveals the intrinsic nature of crack initiation and propagation along slip bands and deformation bands.
description.department[li, p. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [li, p.] yanshan univ, state key lab metastable mat sci & technol, qinhuangdao 066004, peoples r china ; [li, p.] ruhr univ bochum, inst werkstoffe, d-44780 bochum, germany
Subject AreaMultidisciplinary Sciences
Funding OrganizationAlexander von Humboldt Foundation; National Natural Science Foundation of China (NSFC) [51001104]; Chinese Academy of Sciences
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78080
Collection中国科学院金属研究所
Corresponding AuthorLi, P (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Li, P (reprint author), Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China.; Li, P (reprint author), Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany.
Recommended Citation
GB/T 7714
Li, P.,Zhang, Z. F.,Li, P ,et al. Standing wave effect and fractal structure in dislocation evolution[J]. SCIENTIFIC REPORTS,2017,7:-.
APA Li, P.,Zhang, Z. F.,Li, P ,Li, P ,&Li, P .(2017).Standing wave effect and fractal structure in dislocation evolution.SCIENTIFIC REPORTS,7,-.
MLA Li, P.,et al."Standing wave effect and fractal structure in dislocation evolution".SCIENTIFIC REPORTS 7(2017):-.
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