Yi Li

Enhanced Ablation Resistance of Phenolic Resin at 1400–2300 °C through Zirconium-Doping-Induced Heterogeneous Melt Strengthening and Graphitization Transition

Abstract Boron oxide derived from boron-phenolic resin suffers severe viscosity reduction and volatilization at high temperatures, failing to form a robust ceramic melt layer and severely limiting its application in hypersonic vehicles. We designed a zirconium-doped polyborosilan...

Designing Tendon and Reinforcement Configurations for Punching and Postpunching Performance Demands of Posttensioned Concrete Flat Plate Slab–Column Joints

Abstract The punching shear and postpunching strengths of slab–column joints (SCJs) are the critical indicators of the resistance of posttensioned concrete flat plate structures to progressive collapse. These two capacities, however, are governed by distinct failure mechanisms an...