Topic: Improving mechanical interlock in concrete-to-concrete interfaces: A numerical Study
Location: Delft
Date and time: 12-12-2024 14:00
Track: Structural Engineering
Description:
Recent research at TU Delft explores how geometric profiling can enhance the tensile performance of SHCC-to-SHCC interfaces. This thesis models these interfaces using a smeared cracking model in Abaqus and a lattice discrete cracking model to assess their ability to capture failure mechanisms and the benefits of geometric enhancements. The results show that optimized interface strength and geometry can shift failure from brittle interface rupture to ductile SHCC material failure. While the continuum model identifies key parameters but underestimates SHCC hardening, the lattice model captures distributed cracking yet remains too brittle due to simplified interface assumptions. Overall, the study provides insight into how numerical models can be improved to better predict and optimize the tensile behavior of profiled SHCC interfaces.
