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Author: search.filters.author.Rathore, Jitendra S.Subject: search.filters.subject.SW-BNNT

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    Atomistic modeling and dynamic analysis of boron nitride nanotube in the presence of hexagonal defect
    (Elsevier, 2020) Rathore, Jitendra S.; Srivastava, Sharad
    The feasibility of defective Single-Walled Boron Nitride Nanotube (SW-BNNT) has been explored in the present paper employing finite element based three-dimensional atomistic modeling approach. The effect of missing of three conjugate Bsingle bondN pairs in SW-BNNT resulting in formation of hexagonal defect in SW-BNNT on resonance frequency has been analyzed in the present paper. Two different types of SW-BNNT i.e., armchair (5, 5) and Zigzag (5, 0) BNNT of 5 nm length have been analyzed for cantilever and bridged configuration. Further, present work explores the effect of position of defect on resonance frequency in SW-BNNT. The simulation results revels that resonance frequency decreases due to presence of defect and this reduction in frequency increases if the position of defect moves towards free end in the case of cantilever configuration. On the contrary for bridge configuration the resonance frequency decreases continuously if position of defect moves from fixed end to midpoint. Thus it can be concluded that due to presence of defect in nanotube, the resonance frequency decreases and suggests that stiffness is more dominating than mass of nanotube.
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    Hybrid approach for dynamic analysis of single-walled Boron Nitride Nanotube (SW-BNNT) in presence of vacancy defect
    (Elsevier, 2021) Srivastava, Sharad; Rathore, Jitendra S.
    The appropriateness of single walled Boron Nitride Nanotube for recognition of mass as little as of the request for femtogram level (10–18 fg) in nearness of centre found point defect has been investigated through current paper using 3-dimensional atomistic structure approach based on finite element method. The impact of shifting mass in nearness of defect on frequency for armchair (5,5) Boron Nitride Nanotube has been analysed for bridge setup. Considering FEM approach the mass affectability for bridge design is seen as higher when contrasted with cantilever one. The experimental results delight that shorter length of BNNT with bridge arrangement is appropriate for detecting mass as little as of the request for femtogram level when mass is available on focus.