Numerical modeling of flexural enhancement in carbon nanotube/cement composite

Lai Yin Christina Chan, Bassem O Andrawes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An innovative type of fiber reinforced concrete (FRC)-carbon nanotube (CNT)/cement composite-is studied both empirically and numerically in terms of its structural performance. Experimental results prove that CNTs could significantly enhance the flexural strength and toughness of cement beams. In addition, ANSYS, a commercial finite element method (FEM) tool, is employed to construct a CNT/cement composite beam model that could simulate the response of the composite beams tested in the laboratory. Moreover, empirical results are used to validate the numerical beam model, as well as calibrate the effective shear strength at the interface of CNTs and cement matrix. This study verifies the efficacy of reinforcing cementitious material using CNTs and demonstrates that finite element analysis could serve as a powerful tool to investigate the mechanical properties of CNT/cement composite.

Original languageEnglish (US)
Title of host publicationProceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers
Subtitle of host publicationExpanding Our Role
Pages2686-2693
Number of pages8
DOIs
StatePublished - Sep 14 2009
Event2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role - Austin, TX, United States
Duration: Apr 30 2009May 2 2009

Publication series

NameProceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role

Other

Other2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role
CountryUnited States
CityAustin, TX
Period4/30/095/2/09

Keywords

  • Bond strength
  • Carbon nanotubes
  • Cementitious composites
  • Fiber reinforced concrete
  • Finite element method

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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