Brittle fragmentation characteristic of Y-state TU1 rings

Based on Motts statistical theory and Gradys energy balance theory, The Crack Opening Displacement model (COD model ), was used to describe the brittle fragmentation characteristic of TU1 ring. The formula of fragment size and number were derived from the COD model. The fragmentation experiments were carried out for brittle TU1 rings. The freely expanding ring specimens were electromagnetically driven at different stain rates. The experimental results are in agreement with the COD model, and provide an important reference for the description of the brittle metal fragmentation behavior.