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Stress Transfer within CNT Fibres: A FEA Approach

Montinaro, Nicola; Gspann, Thurid S.; Pantano, Antonio; Elliott, James A.; Windle, Alan H.

Abstract:
Carbon nanotube (CNT) fibres are characterized by extreme anisotropy in their structure and physical properties. These fibres have been shown to have high axial strength, but poor shear strength between carbon nanotubes; for this reason it is difficult to transfer stress uniformly acrossthe fibre cross section. Here, Finite Element Analysis (FEA) is used to predict the stress distribution and the stress-strain curves of CNT fibres. The resultsdemonstrate that, in accordance with St. Venant principle,very considerable length-to-diameter ratios (> 10$^{3}$) are required to obtain a uniform stress distribution within the fibres even in the presence of low applied strain.

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Originalveröffentlichung
DOI: 10.1016/j.proeng.2015.06.258
Scopus
Zitationen: 2
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 1877-7058
KITopen-ID: 1000122472
Erschienen in Procedia engineering
Band 109
Seiten 435–440
Bemerkung zur Veröffentlichung XXIII Italian Group of Fracture Meeting, IGFXXIII
Schlagwörter Carbon Nanotubes; CNT Fibres; Nanomaterial; FEA.
Nachgewiesen in Scopus
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