Abstract
In this paper, a multiscale modeling approach is proposed for studying the pinhole defects in double wall carbon nanotube (DWNT) reinforced polymer composites. Two configurations of DWNT i.e., armchair (5,5), (10,10) and zigzag (9,0), (16,0) are selected for the analyses wherein C–C bonds at atomic scale are modeled as Euler beam. The three-dimensional (3D) solid elements are used for matrix material and square representative volume element (RVE) is constructed for the nanocomposite. These composite materials consist of aligned carbon nanotubes (CNTs) that are uniformly distributed within the matrix. The presence of chemical covalent bonding between functionalized CNT and matrix are modeled as elastic crosslinks. The nonbonded van der Waals interactions between inner and outer wall are modeled as cohesive interaction elements. The influence of the pinhole defects on the nanocomposite are studied under axial load condition. It has been observed that with the increase in the number of atomic vacancies, the elastic modulus of the composite are reduced significantly. The effects of nanotube chirality and composite stiffness ratio on the elastic properties are also analyzed in the presence of pinhole defects.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
