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Abstract:
Continuous macroscopic carbon nanotube (CNT) fiber is made of meso-scale bundles, where most CNTs are well aligned along the fiber axis direction. This paper presents a multi-scale model of the CNT fiber by using shape-based coarse-graining technique. Simulations of monotonic and cyclic tensile tests were conducted to study plastic deformation and micro-structural evolution of the CNT fiber. It is shown that the plastic deformation of the CNT fiber generates after short elastic-like deformation under tensile loading, and is closely correlated with strain rate of the applied load. In addition, plastic deformation process of the CNT fiber is determined by different factors in two strain rate ranges, i.e. inter-bundle interaction at low strain rates and mechanical properties of CNT bundles at high strain rates. (C) 2014 Elsevier Ltd. All rights reserved.
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INTERNATIONAL JOURNAL OF PLASTICITY
ISSN: 0749-6419
Year: 2015
Volume: 64
Page: 104-112
9 . 8 0 0
JCR@2022
ESI Discipline: ENGINEERING;
ESI HC Threshold:174
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 20
SCOPUS Cited Count: 25
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 3
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