An experimental study on crack propagation at rock-concrete interface using digital image correlation technique

• Published in: Engineering fracture mechanics Vol. 171; pp. 50 - 63
• Main Authors: Dong, Wei, Wu, Zhimin, Zhou, Xiangming, Wang, Na, Kastiukas, Gediminas
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 15.02.2017; Elsevier BV
• Subjects: Bending; Case depth; Composite beams; Concrete; Crack propagation; Digital image correlation; Digital imaging; Fracture mechanics; Fracture mode; Fracture process zone; Kinking; Load; Peak load; Rock-concrete interface; Rocks; Shearing; Fracture process zone; Digital image correlation; Fracture mode; Rock-concrete interface; Crack propagation

•DIC technology is used to study crack propagation at rock-concrete interface.•A shorter full FPZ length makes rock-concrete interface more brittle than concrete.•FPZ at peak load is much longer in a rock-concrete specimen under FPS than under TPB.•Increase in Mode II component makes crack divert in...