The molecular dynamics (MD) simulation is used to calculate the mechanical properties of single-walled BNNTs (SWBNNT). The effects of diameter, chirality and temperature on the mechanical properties of respected systems have been investigated. The results showed that, z More
The molecular dynamics (MD) simulation is used to calculate the mechanical properties of single-walled BNNTs (SWBNNT). The effects of diameter, chirality and temperature on the mechanical properties of respected systems have been investigated. The results showed that, zigzag BNNTs are stiffer than armchair ones with nearly the same diameter. Also the Young’s modulus of both type of SWBNNTs increase when the tube diameter increases till the specific diameter and then decrease slightly. We found that diameter changes have no significant influence on the failure stress and strain of zigzag BNNTs. In addition, the results confirmed that all measured mechanical properties decrease with increasing temperature. Our simulation findings afford not only a molecular level understanding of the BNNTs but also may be instructive to mechanical engineers and scientists who attempt to develop effective mechanical properties.
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By using molecular dynamics (MD) simulation the mechanical properties of single, double and triple walled BNNTs (SWBNNT, DWBNNT and TWBNNT) is investigated. The effects of diameter, chirality, interlayer distance and temperature on the mechanical properties of respected More
By using molecular dynamics (MD) simulation the mechanical properties of single, double and triple walled BNNTs (SWBNNT, DWBNNT and TWBNNT) is investigated. The effects of diameter, chirality, interlayer distance and temperature on the mechanical properties of respected systems have been investigated. The results showed that, zigzag BNNTs are stiffer than armchair ones with nearly the same diameter. Also, the Young’s modulus of both type of DWBNNTs and TWBNNT increase when the tube diameter increases. In addition, the results confirmed that all measured mechanical properties decrease with increasing temperature. Furthermore, the Young’s modulus of DWBNNTs are smaller than TWBNNTs and larger than SWBNNT. We showed that the Young’s modulus of DWCNTs with various interlayer distances increase when separation wall distances were decreased. Our simulation findings afford not only a molecular level understanding of the BNNTs but also may be instructive to mechanical engineers and scientists who attempt to develop effective mechanical properties.
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Carbon has several allotropes. One of the newest carbon allotrope is graphene nanobud. It isn’t available in laboratory. Graphene nanobud is formed by connecting fullerene and graphene sheet. Molecular dynamic simulation is used for calculating mechanical properti More
Carbon has several allotropes. One of the newest carbon allotrope is graphene nanobud. It isn’t available in laboratory. Graphene nanobud is formed by connecting fullerene and graphene sheet. Molecular dynamic simulation is used for calculating mechanical properties of graphene nanobuds. Influence of temperature, neck length and size of graphene sheet are estimated in this study. The results shows that Young’s modulus has a little changes with temperature arrises. In another word, with increasing temperature the Young’s modulus doesn’t change very much and just alittle decrease. Also seen that in constant temperature with increasing the size of graphene sheet, the Young’s modulus arises. Our simulation findings afford not only a molecular level understanding of graphene nanobud but also may be instructive to mechanical engineers and scientists who attempt to develop effective mechanical properties.
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In polymer-based nanocomposites, carbon nanofibers have been used to improve mechanical properties in various applications. In this research, the tensile properties of carbon nanofibers have been used to create carbon-epoxy nanocomposite and improve the mechanical prope More
In polymer-based nanocomposites, carbon nanofibers have been used to improve mechanical properties in various applications. In this research, the tensile properties of carbon nanofibers have been used to create carbon-epoxy nanocomposite and improve the mechanical properties of epoxy nanocomposite, and the effect of the weight percentage of carbon nanofibers on the mechanical properties of epoxy nanocomposite has been investigated. Epoxy with weight percentages of 1.0, 5.0 and 1.5 carbon nanofibers were produced and their mechanical properties were investigated. The results showed that the use of even a small percentage of carbon nanofibers can lead to the improvement of mechanical properties.
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