TY - GEN
T1 - Numerical modeling of flexural enhancement in carbon nanotube/cement composite
AU - Chan, Lai Yin Christina
AU - Andrawes, Bassem
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Bond strength
KW - Carbon nanotubes
KW - Cementitious composites
KW - Fiber reinforced concrete
KW - Finite element method
UR - http://www.scopus.com/inward/record.url?scp=69949142034&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=69949142034&partnerID=8YFLogxK
U2 - 10.1061/41031(341)293
DO - 10.1061/41031(341)293
M3 - Conference contribution
AN - SCOPUS:69949142034
SN - 9780784410318
T3 - Proceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role
SP - 2686
EP - 2693
BT - Proceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers
T2 - 2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role
Y2 - 30 April 2009 through 2 May 2009
ER -