Peridynamic simulation of engineered cementitious composites and concrete laminated structure under fatigue loading.

In this paper, the fatigue failure of engineered cementitious composites (ECC) and concrete laminated structure was investigated by using a model based on the peridynamics (PD) method. The model enhances efficiency by incorporating "residual life" and "cyclic blocks," utilizing the fully discrete method for ECC interfaces and the energy-based PD model for bimaterial interfaces. Its effectiveness, accuracy, and versatility have been validated through various numerical examples. Furthermore, the study examines crack propagation in ECC pavement overlays under four-point bending and investigates the impact of ECC layer thickness and fiber content on the fatigue characteristics of laminated structures. • A fully discrete fatigue model of ECC is constructed based on PD. • The energy-based PD model for the interfaces in ECC-concrete laminated structures was built. • The established model simulated the fatigue failure of ECC-concrete laminated structures. [ABSTRACT FROM AUTHOR]