2026-05-28T05:42:03Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/449242026-01-28T00:45:33Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Miarka, Peter author Sanchez Cruces, Alejandro author Lopez-Crespo, Pablo author De Corte, Wouter author 2022-12-28 In this paper, the fracture process zone (FPZ) of a high-performance concrete (HPC) is studied. The analysis is done under a pure mode II load, making use of a digital image correlation (DIC) technique. The experimental test was performed on Brazilian disc with central notch (BDCN) specimens with a relative notch ratio a/R of 0.267. The main focus of this experimental study was the traction-free crack ahead of the notch tip, together with the FPZ extent ahead of the crack. This is done by adjusting the current method for mode I crack localisation to pure mode II cracks. Additionally, a traditional analytical formulation to predict FPZ length was substituted with the fracture toughness for mode II to cover mode II load cases. To verify the adjustments to the mode I crack identification, crack tip opening (CTOD) and crack tip sliding (CTSD) displacements were measured by DIC, which showed a mode II dominance in the crack tip displacement components. Petr Miarka , Alejandro S. Cruces, Pablo Lopez-Crespo, Wouter De Corte. On the localisation of the FPZ under a pure mode II load identified by a hybrid method. Engineering Fracture Mechanics 2023. https://hdl.handle.net/10630/44924 10.1016/j.engfracmech.2022.109019 Materiales - Fatiga Hormigón - Fractura On the localisation of the FPZ under a pure mode II load identified by a hybrid method