An experimental investigation on the FPZ properties in concrete using digital image correlation technique

• Published in: Engineering fracture mechanics Vol. 78; no. 17; pp. 2978 - 2990
• Main Authors: Wu, ZhiMin, Rong, Hua, Zheng, JianJun, Xu, Feng, Dong, Wei
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2011; Elsevier
• Subjects: Concrete; Concretes; Correlation; Crack opening displacement; Crack propagation; Digital; Digital image correlation technique; Exact sciences and technology; Fracture mechanics; Fracture mechanics (crack, fatigue, damage...); Fracture process zone; Fracture process zone length; Fundamental areas of phenomenology (including applications); Ligaments; Peak load; Physics; Solid mechanics; Structural and continuum mechanics; Fracture process zone; Crack opening displacement; Digital image correlation technique; Concrete; Fracture process zone length; Notched test piece; Image processing; Rupture; Digital image; Experimental study; Crack propagation; Concrete construction; Crack length

► The DIC method is used to investigate the FPZ properties in concrete. ► The FPZ length initially increases and then decreases with the crack propagation. ► The FPZ length at peak load increases with an increase in ligament length. ► The crack extension length at the peak load is about 0.25 times t...