Research on the Energy Dissipation Patterns and Fragment Size Distribution Characteristics of Coal Under Cyclic Impact Loading With Confining Pressure

• Published in: Geofluids Vol. 2024; no. 1
• Main Authors: Yongliang, He, Yuping, Fu, Chuantian, Li, Liying, Sun, Dongya, Zhang
• Format: Journal Article
• Language: English
• Published: Chichester John Wiley & Sons, Inc 2024; Wiley
• Subjects: Acoustics; Coal mining; Crack propagation; Deformation; Earthquakes; Energy dissipation; Energy distribution; Energy exchange; Fractals; Impact loads; Mechanical properties; Propagation; Size distribution; Stress concentration; Velocity

This study examines energy dissipation patterns and failure mechanisms in coal under cyclic impact, crucial for preventing dynamic disasters like rock bursts and coal and gas outbursts. Using a 75‐mm split Hopkinson pressure bar (SHPB) experimental system, the dynamic mechanical characteristics and...