Numerical model on the stress field and multiple cracking behavior of Engineered Cementitious Composites (ECC)

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• 作者：Cong Lu^a ; ^{cluab@connect.ust.hk} ; Christopher K.Y. Leung^a ; ^{ckleung@ust.hk} ; Victor C. Li^b ; ^{vcli@umich.edu}
• 关键词：Simulation ; Engineered Cementitious Composites (ECC) ; Multiple cracking ; Stress field ; Ductility
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：133
• 期：Complete
• 页码：118-127
• 全文大小：1229 K
• 卷排序：133

文摘

The model numerically simulates the multiple-cracking process of ECC for the first time. The stress transferred to the matrix at various distances from the crack is derived. All key influential factors have been considered including chemical bond, slip-hardening, fiber rupture, and many others. Stress-strain curve of this material under tension was simulated which agrees well with experimental observations. This model provides insights into cause of the unsaturated-cracking phenomenon, which is most concerned for ECC application.