Partial Auxeticity of Laterally Compressed Carbon Nanotube Bundles; Physica Status Solidi RRL; Online Version
| Parent link: | Physica Status Solidi RRL Online Version.— 2021.— [2100189, 10 p.] |
|---|---|
| Співавтор: | |
| Інші автори: | , , , , , , |
| Резюме: | Title screen Carbon nanotubes (CNTs) have attracted increasing attention because of their enormous potential in various technologies. Herein, the evolution of the structure and elastic properties of a CNT bundle under compression in uniaxial and biaxial regimes is analyzed using a chain model with a reduced number of degrees of freedom. The compression stress–strain curves consist of four stages, each of which is characterized by a specific structure and deformation mechanism. In the first stage, all CNTs have the same cross section; in the second stage, the translational symmetry is preserved in the system, but with a doubled translational cell; in the third stage, CNT collapse takes place, leading to the loss of the translational symmetry; the fourth stage begins when all CNTs collapse. Elastic constants are calculated for the CNT bundle under uniaxial and biaxial compression during the first two stages. In all loading schemes, during the second stage of deformation, the CNT bundle exhibits partial auxetic properties. The results obtained contribute to the fundamental knowledge for the design of carbon nanomaterials with enhanced properties. |
| Мова: | Англійська |
| Опубліковано: |
2021
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.1002/pssr.202100189 |
| Формат: | MixedMaterials Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666424 |
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| 200 | 1 | |a Partial Auxeticity of Laterally Compressed Carbon Nanotube Bundles |f E. A. Korznikova, E. I. Smirnova, Zhou Kun [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 103 tit.] | ||
| 330 | |a Carbon nanotubes (CNTs) have attracted increasing attention because of their enormous potential in various technologies. Herein, the evolution of the structure and elastic properties of a CNT bundle under compression in uniaxial and biaxial regimes is analyzed using a chain model with a reduced number of degrees of freedom. The compression stress–strain curves consist of four stages, each of which is characterized by a specific structure and deformation mechanism. In the first stage, all CNTs have the same cross section; in the second stage, the translational symmetry is preserved in the system, but with a doubled translational cell; in the third stage, CNT collapse takes place, leading to the loss of the translational symmetry; the fourth stage begins when all CNTs collapse. Elastic constants are calculated for the CNT bundle under uniaxial and biaxial compression during the first two stages. In all loading schemes, during the second stage of deformation, the CNT bundle exhibits partial auxetic properties. The results obtained contribute to the fundamental knowledge for the design of carbon nanomaterials with enhanced properties. | ||
| 461 | |t Physica Status Solidi RRL | ||
| 463 | |t Online Version |v [2100189, 10 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a auxetic | |
| 610 | 1 | |a carbon nanotube bundles | |
| 610 | 1 | |a chain models | |
| 610 | 1 | |a elastic properties | |
| 610 | 1 | |a lateral compression | |
| 701 | 1 | |a Korznikova |b E. A. |g Elena Aleksandrovna | |
| 701 | 1 | |a Smirnova |b E. I. |g Ekaterina Ivanovna | |
| 701 | 0 | |a Zhou Kun | |
| 701 | 1 | |a Galiakhmetova |b L. Kh. | |
| 701 | 1 | |a Soboleva |b E. G. |c physicist |c Associate Professor of Yurga technological Institute of Tomsk Polytechnic University, Candidate of physical and mathematical Sciences |f 1976- |g Elvira Gomerovna |3 (RuTPU)RU\TPU\pers\32994 |9 16839 | |
| 701 | 1 | |a Kudreyko |b A. A. |g Aleksey Alfredovich | |
| 701 | 1 | |a Dmitriev |b S. V. | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Юргинский технологический институт |c (2009- ) |3 (RuTPU)RU\TPU\col\15903 |
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| 856 | 4 | |u https://doi.org/10.1002/pssr.202100189 | |
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