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An elastic model for bioinspired design of carbon nanotube bundles

An elastic model for bioinspired design of carbon nanotube bundles

作     者:Xiaoyu Sun Zuoqi Zhang Yuanjie Xu Yongwei Zhang 

作者机构:School of Civil EngineeringWuhan University Institute of High Performance ComputingA*STARSingapore 138632Singapore 

出 版 物:《Acta Mechanica Sinica》 (力学学报(英文版))

年 卷 期:2015年第31卷第2期

页      面:205-215页

核心收录:

学科分类:08[工学] 080102[工学-固体力学] 0801[工学-力学(可授工学、理学学位)] 

基  金:support from IHPC,A*STAR partially supported by the China Postdoctoral Science Foundation(Grant No.2014M562055) 

主  题:Carbon nanotube fiber Collagen mimic design Staggered pattern Interface modification 

摘      要:Collagen fibers provide a good example of making strong micro-or mesoscale fibers from nanoscale tropocollagen molecules through a staggered and crosslinked organization in a bottom-up *** the architectural features of collagen fibers has been shown to be a promising approach to develop carbon nanotube(CNT)fibers of high *** the present work,an elastic model is developed to describe the load transfer and failure propagation within the bioinspired CNT bundles,and to establish the relations of the mechanical properties of the bundles with a number of geometrical and physical parameters such as the CNT aspect ratio and longitudinal gap,interface cross-link density,and the functionalizationinduced degradation in CNTs,*** the model,the stress distributions along the CNT-CNT interface as well as in every individual CNT are well captured,and the failure propagation along the interface and its effects on the mechanical properties of the CNT bundles are *** work may provide useful guidelines for the design of novel CNT fibers in practice.

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