Micromechanics modeling of the uniaxial strain-sensing property of carbon nanotube cement-matrix composites for SHM applications

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• 作者：Enrique Garcí ; a-Mací ; as^a ; ^{egarcia28@us.es} ; Antonella D'Alessandro^b ; Rafael Castro-Triguero^c ; Domingo Pé ; rez-Mira^d ; Filippo Ubertini^b
• 关键词：Carbon nanotube ; Cement-matrix composites ; Piezoresistive modeling ; Percolation ; Smart concrete ; Structural Health Monitoring
• 刊名：Composite Structures
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：163
• 期：Complete
• 页码：195-215
• 全文大小：3382 K
• 卷排序：163

文摘

Strain sensitivity of cement-based nanocomposites is analytically modeled. Strain-induced reorientation of CNTs is modeled by orientation distribution function. Change in the percolation threshold is modeled by Komoro and Makishima’s approach. Wavy state of nanotubes is modeled by means of a helical approach. Two-parameter agglomeration model of non-uniform fibers distribution is proposed.