COMPLAS 2025

Numerical modeling of the fatigue-induced self-healing in concrete

  • Chen, Hongjie (Shantou University)
  • Yu, Rena C (Universidad de Castilla-La Mancha)
  • Ruiz, Gonzalo (University of Castilla-La Mancha)
  • Yu, Ying (Shantou University)

Please login to view abstract download link

Self-healing in cementitious materials is a promising mechanism to extend the service life of structures subjected to fatigue loads. This study presents a numerical framework for simulating fatigue-induced self-healing in concrete using cohesive zone models (CZMs). The approach integrates progressive damage accumulation with a healing mechanism driven by crack closure and continued hydration. The cohesive model incorporates a time-dependent healing function, accounting for material recovery under cyclic loading. The methodology is validated against experimental data, demonstrating the ability of cohesive models to capture crack closure effects and strength recovery. Results highlight the potential of CZMs in predicting the interplay between fatigue-induced damage and autonomous healing, providing insights into the durability enhancement of cementitious materials. The findings contribute to the development of advanced numerical tools for designing self-healing concrete, paving the way for sustainable and resilient infrastructure.