In this paper, we propose a new explicit analytical formula of the critical buckling load of double-walled carbon nanotubes (DWCNT) under axial compression. This formula takes into account van der Waals interactions between adjacent tubes and the effect of terms involving tube radii differences generally neglected in the derived expressions of the critical buckling load published in the literature. The elastic multiple Donnell shells continuum approach is employed for modelling the multi-walled carbon nanotubes. The validation of the proposed formula is made by comparison with a numerical solution. The influence of the neglected terms is also studied.
Cet article a pour objectif la proposition d'une formule analytique explicite de la charge critique de flambage des nantubes de carbone à double parois (DWCNT) soumis à une compression axiale. Cette formule prend en compte les interactions de van der Waals entre les tubes adjacents et l'influence des rayons, généralement negligée dans les formules donnant la charge critique de flambage publiées dans la littérature. L'approche continue des coques multiples de Donnell est utilisée pour la modélisation des nanotubes de carbone multi-parois. La validation de la formule proposée est faite par une comparaison avec une solution numérique. L'effet des termes négligés a aussi été étudié.
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Mots-clés : Flambage, Nanotubes de carbone multi-parois, Interaction de van der Waals, Compression axiale, Coque élastique multiple de Donnell
Abdelaziz Timesli 1; Bouazza Braikat 2; Mohammad Jamal 2; Noureddine Damil 2
@article{CRMECA_2017__345_2_158_0, author = {Abdelaziz Timesli and Bouazza Braikat and Mohammad Jamal and Noureddine Damil}, title = {Prediction of the critical buckling load of multi-walled carbon nanotubes under axial compression}, journal = {Comptes Rendus. M\'ecanique}, pages = {158--168}, publisher = {Elsevier}, volume = {345}, number = {2}, year = {2017}, doi = {10.1016/j.crme.2016.12.002}, language = {en}, }
TY - JOUR AU - Abdelaziz Timesli AU - Bouazza Braikat AU - Mohammad Jamal AU - Noureddine Damil TI - Prediction of the critical buckling load of multi-walled carbon nanotubes under axial compression JO - Comptes Rendus. Mécanique PY - 2017 SP - 158 EP - 168 VL - 345 IS - 2 PB - Elsevier DO - 10.1016/j.crme.2016.12.002 LA - en ID - CRMECA_2017__345_2_158_0 ER -
%0 Journal Article %A Abdelaziz Timesli %A Bouazza Braikat %A Mohammad Jamal %A Noureddine Damil %T Prediction of the critical buckling load of multi-walled carbon nanotubes under axial compression %J Comptes Rendus. Mécanique %D 2017 %P 158-168 %V 345 %N 2 %I Elsevier %R 10.1016/j.crme.2016.12.002 %G en %F CRMECA_2017__345_2_158_0
Abdelaziz Timesli; Bouazza Braikat; Mohammad Jamal; Noureddine Damil. Prediction of the critical buckling load of multi-walled carbon nanotubes under axial compression. Comptes Rendus. Mécanique, Volume 345 (2017) no. 2, pp. 158-168. doi : 10.1016/j.crme.2016.12.002. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2016.12.002/
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