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Numerical investigation of the overall stiffness of carbon nanotube-based composite materials

In this study, a finite element model of a representative volume element that contains a hollow and filled single-walled Carbon nanotube (SWCNT) in two case studies was generated. It was assumed that the nanocomposites have geometric periodicity with respect to local length scale and the elastic pro...

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التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Mavalizadeh, Seyedmehdi, Ramandoust, Moones, Ochsner, Andreas
التنسيق: مقال
منشور في: Trans Tech Publications 2011
الموضوعات:
TJ Mechanical engineering and machinery
الوصول للمادة أونلاين:http://eprints.utm.my/id/eprint/29623/
http://dx.doi.org/10.4028/www.scientific.net/JNanoR.13.47
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id my.utm.29623
record_format eprints
spelling my.utm.296232017-10-17T04:39:28Z http://eprints.utm.my/id/eprint/29623/ Numerical investigation of the overall stiffness of carbon nanotube-based composite materials Mavalizadeh, Seyedmehdi Ramandoust, Moones Ochsner, Andreas TJ Mechanical engineering and machinery In this study, a finite element model of a representative volume element that contains a hollow and filled single-walled Carbon nanotube (SWCNT) in two case studies was generated. It was assumed that the nanocomposites have geometric periodicity with respect to local length scale and the elastic properties can be represented by those of the representative volume element (RVE). Elastic properties in agreement with existing literature values for the Carbon nanotube and the matrix were assigned. Then for the two case studies, the tensile test was simulated to find the effect of the geometry, i.e. the volume fraction of matrix and SWCNT's properties variation, on the effective Young's modulus of the structure. In another approach, by applying perpendicular loading to the tube direction, the effect of matrix volume fraction on the transverse Young's modulus was studied. The investigations showed that for both RVEs with filled SWCNT and hollow SWCNT, the effective Young's modulus of the structure decreases approximately linear as the matrix volume fraction increases. The value of Young's modulus of the RVE with a filled Carbon nanotube was obtained to be higher than the RVE with the hollow Carbon nanotube. In addition, by increasing the tube diameter, the effective Young's modulus of the structure increases and the transverse Young's modulus decreases approximately linear for filled tubes but this parameter remains rather constant in the case of the hollow tube by increasing the matrix volume fraction. Trans Tech Publications 2011 Article PeerReviewed Mavalizadeh, Seyedmehdi and Ramandoust, Moones and Ochsner, Andreas (2011) Numerical investigation of the overall stiffness of carbon nanotube-based composite materials. Journal of Nano Research, 13 ( ). 047-059. ISSN 1662-5250 http://dx.doi.org/10.4028/www.scientific.net/JNanoR.13.47 10.4028/www.scientific.net/JNanoR.13.47
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mavalizadeh, Seyedmehdi
Ramandoust, Moones
Ochsner, Andreas
Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
description In this study, a finite element model of a representative volume element that contains a hollow and filled single-walled Carbon nanotube (SWCNT) in two case studies was generated. It was assumed that the nanocomposites have geometric periodicity with respect to local length scale and the elastic properties can be represented by those of the representative volume element (RVE). Elastic properties in agreement with existing literature values for the Carbon nanotube and the matrix were assigned. Then for the two case studies, the tensile test was simulated to find the effect of the geometry, i.e. the volume fraction of matrix and SWCNT's properties variation, on the effective Young's modulus of the structure. In another approach, by applying perpendicular loading to the tube direction, the effect of matrix volume fraction on the transverse Young's modulus was studied. The investigations showed that for both RVEs with filled SWCNT and hollow SWCNT, the effective Young's modulus of the structure decreases approximately linear as the matrix volume fraction increases. The value of Young's modulus of the RVE with a filled Carbon nanotube was obtained to be higher than the RVE with the hollow Carbon nanotube. In addition, by increasing the tube diameter, the effective Young's modulus of the structure increases and the transverse Young's modulus decreases approximately linear for filled tubes but this parameter remains rather constant in the case of the hollow tube by increasing the matrix volume fraction.
format Article
author Mavalizadeh, Seyedmehdi
Ramandoust, Moones
Ochsner, Andreas
author_facet Mavalizadeh, Seyedmehdi
Ramandoust, Moones
Ochsner, Andreas
author_sort Mavalizadeh, Seyedmehdi
title Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
title_short Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
title_full Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
title_fullStr Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
title_full_unstemmed Numerical investigation of the overall stiffness of carbon nanotube-based composite materials
title_sort numerical investigation of the overall stiffness of carbon nanotube-based composite materials
publisher Trans Tech Publications
publishDate 2011
url http://eprints.utm.my/id/eprint/29623/
http://dx.doi.org/10.4028/www.scientific.net/JNanoR.13.47
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score 13.251813

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