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International Journal for Multiscale Computational Engineering

Publicou 6 edições por ano

ISSN Imprimir: 1543-1649

ISSN On-line: 1940-4352

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00034 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

Indexed in

Deformation and Stability of Copper Nanowires under Bending

Volume 7, Edição 3, 2009, pp. 205-215
DOI: 10.1615/IntJMultCompEng.v7.i3.40
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RESUMO

Using molecular dynamics simulations and the embedded-atom method, the bending deformation and stability of copper nanowires are investigated in this article. It is found that the plastic deformation is mainly accommodated by the propagation of and the interaction between partial dislocations nucleated from surfaces, with twinning being a very common deformation mode. Simulation results also show that the copper nanowires exhibit a decrease of resistance against plastic deformation and tend to become homogeneous with the increase of the length, while the resistance increases with the increase of the thickness under bending. These results are consistent with those from the instability analysis based on the local Hessian matrix and suggest that the structure identification method based on the Voronoi construction can be used as a reasonable criterion for instability analysis. In addition, it is also found that two- and three-conjoint fivefold deformation twins can be formed in the quasi one-dimensional nanostructures due to the abundance of partial dislocations, stacking faults, and twins.

Referências
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CITADO POR
  1. Jiang Shan, Zhang Hongwu, Zheng Yonggang, Chen Zhen, Loading path effect on the mechanical behaviour and fivefold twinning of copper nanowires, Journal of Physics D: Applied Physics, 43, 33, 2010. Crossref

  2. Jiang Shan, Chen Zhen, Gan Yong, Oloriegbe Suleiman Y, Sewell Thomas D, Thompson Donald L, Size effects on the wave propagation and deformation pattern in copper nanobars under symmetric longitudinal impact loading, Journal of Physics D: Applied Physics, 45, 47, 2012. Crossref

  3. Weinberger Christopher R., Cai Wei, Plasticity of metal nanowires, Journal of Materials Chemistry, 22, 8, 2012. Crossref

  4. Gao Yajun, Wang Fenying, Zhu Tiemin, Zhao Jianwei, Investigation on the mechanical behaviors of copper nanowires under torsion, Computational Materials Science, 49, 4, 2010. Crossref

  5. Jiang Shan, Shen Yonggang, Zheng Yonggang, Chen Zhen, Formation of quasi-icosahedral structures with multi-conjoint fivefold deformation twins in fivefold twinned metallic nanowires, Applied Physics Letters, 103, 4, 2013. Crossref

  6. ZHENG Y. G., ZHAO Y. T., YE H. F., ZHANG H. W., FU Y. F., ATOMISTIC SIMULATION OF TORSIONAL VIBRATION AND PLASTIC DEFORMATION OF FIVE-FOLD TWINNED COPPER NANOWIRES, International Journal of Computational Methods, 11, supp01, 2014. Crossref

  7. Jiang Shan, Chen Zhen, Sewell Thomas D., Gan Yong, Multiscale simulation of the responses of discrete nanostructures to extreme loading conditions based on the material point method, Computer Methods in Applied Mechanics and Engineering, 297, 2015. Crossref

  8. Cai Kun, Wan Jing, Yang Likui, Wei Ning, Shi Jiao, Qin Qing-Hua, Buckling behaviour of composites with double walled nanotubes from carbon and phosphorus, Physical Chemistry Chemical Physics, 19, 17, 2017. Crossref

  9. Su Yu-Chen, Jiang Shan, Gan Yong, Chen Zhen, Lu Jian-Ming, Investigation of the mechanical responses of copper nanowires based on molecular dynamics and coarse-grained molecular dynamics, Computational Particle Mechanics, 6, 2, 2019. Crossref

  10. Yedla Natraj, Meraj Md., Gupta Pradeep, Sarat Venumbakkam, Kabi Amar Jyoti, Pal Snehanshu, The effect of nano-void on deformation behaviour of Al-Cu intermetallic thin film compounds, Metallurgical Research & Technology, 112, 5, 2015. Crossref

  11. Su Yu-Chen, Sewell Tommy, Chen Zhen, Comparative investigation of shear-band evolution using discrete and continuum-based particle methods, Acta Geotechnica, 16, 8, 2021. Crossref

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