Experimental Study on the Temporal and Morphological Characteristics of Dynamic Tensile Fractures in Igneous Rocks

• Published in: Applied sciences Vol. 11; no. 23; p. 11230
• Main Authors: Xu, Xuan, Chi, Li-Yuan, Yang, Jun, Yu, Qi
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.12.2021
• Subjects: Cameras; Concrete; Crack initiation; Deformation; DIC analysis; dynamic tensile fracture; Igneous rocks; incubation time criterion; Measurement techniques; morphological characteristics; Morphology; Reinforced concrete; SHPB; Strain gauges; Stress concentration; Tensile strength; Underground construction

In order to investigate the temporal and morphological characteristics of dynamic tensile fractures, experiments on Brazilian specimens machined from igneous rocks (Breccia and Andesite) are carried out with the split Hopkinson pressure bar (SHPB). Detailed observation of the fracture processes of t...