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首页> 美国政府科技报告 >Stress-strain Behavior of Polymer-Nanotube Composites from Molecular Dynamics Simulations
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Stress-strain Behavior of Polymer-Nanotube Composites from Molecular Dynamics Simulations

机译：分子动力学模拟聚合物 - 纳米管复合材料的应力 - 应变行为

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Stress-strain curves of polymer-carbon nanotube composites are derived from molecular dynamics simulations of a single-walled carbon nanotube embedded in polyethylene. A comparison is made between the response to mechanical loading of a composite with a long, continuous nanotube (replicated via periodic boundary conditions) and the response of a composite with a short, discontinuous nanotube. Both composites are mechanically loaded in the direction of and transverse to the NT axis. The long-nanotube composite shows an increase in the stiffness relative to the polymer and behaves anisotropically under the different loading conditions. The short-nanotube composite shows no enhancement relative to the polymer, most probably because of its low aspect ratio. The stress-strain curves are compared with rule-of-mixtures predictions.

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