Size effects in mechanical properties of boron nitride nanoribbons
作者： Minh-Quy Le
DOI: 10.1007/S12206-014-0930-8
关键词: Boron nitride 、 Molecular dynamics 、 Zigzag 、 Stress (mechanics) 、 Mechanical property 、 Modulus 、 Composite material 、 Ultimate tensile strength 、 Fracture (geology) 、 Materials science
摘要: Size effects in mechanical properties are investigated through molecular dynamics simulations with Tersoff-like potential for boron nitride nanoribbons (BNNRs) the armchair and zigzag directions under uniaxial tension. It is found that tensile of rectangular BNNRs fixed lengths significantly affected by length-width ratios, while these aspect ratios less sensitive to widths. minor square nanosheets. For length, Young’s modulus, fracture stress strain increase when decreasing width. modulus increase, varies slightly decreases from 299 N/m a very narrow sheet 258 sheets, this property increases 231 250 BNNRs. Fracture 44.4 35.6 sheet.
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