On fracture process zone and crack extension resistance of concrete based on initial fracture toughness

2013 ◽  
Vol 49 ◽  
pp. 352-363 ◽  
Author(s):  
Wei Dong ◽  
Xiangming Zhou ◽  
Zhimin Wu
Keyword(s):  
Fracture Toughness ◽  
Crack Extension ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Initial Fracture

scholarly journals On the link between fracture toughness, tensile strength, and fracture process zone in anisotropic rocks

2018 ◽  
Vol 201 ◽  
pp. 56-79 ◽  
Author(s):  
Nathan Dutler ◽  
Morteza Nejati ◽  
Benoît Valley ◽  
Florian Amann ◽  
Giulio Molinari
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Anisotropic Rocks

scholarly journals Experimental Study on the Fracture Process Zone Characteristics in Concrete Utilizing DIC and AE Methods

2019 ◽  
Vol 9 (7) ◽  
pp. 1346 ◽  
Author(s):  
Shuhong Dai ◽  
Xiaoli Liu ◽  
Kumar Nawnit
Keyword(s):  
Crack Extension ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Surface Deformation ◽  
Process Zone ◽  
Image Correlation ◽  
Displacement Fields ◽  
Ae Signal ◽  
Tip Position ◽  
Extension Length

The present work focuses on investigating the characteristics of the fracture process zone (FPZ) in concrete. The Single-edge notched (SEN) concrete beams under three-points bending are employed for conducting mode I fracture propagation. The displacement fields on the specimen surface and the internal AE signal of specimen are obtained simultaneously in real time by digital image correlation (DIC) and acoustic emission (AE) techniques. The experimental and analytical results indicated that the crack tip position, the crack extension length and the stress intensity factors (SIF) are obtained dynamically and quantitatively by DIC technique, and the length of FPZ is identified, respectively, by DIC and AE techniques in the crack extension process. The distribution of internal AE events is consistent with that of FPZ identified from surface deformation of specimens.

Ultrasonic monitoring of the fracture process zone in fracture toughness tests of granite.

1990 ◽  
Vol 56 (525) ◽  
pp. 1177-1182 ◽  
Author(s):  
Toshiyuki HASHIDA ◽  
Tsuyoshi UEDA ◽  
Kazuhiro DATE ◽  
Hideaki TAKAHASHI ◽  
Hiroyuki ABE
Keyword(s):  
Fracture Toughness ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Ultrasonic Monitoring
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