Rayleigh wave propagation in mesostructure models of concrete with cracks under force excitation loads in Abaqus

The dataset contains the results of the displacement signal from mesostructure models of concrete under force excitation loads. Fifteen different disorder arrangements were created using the 35% aggregate content. The dimensions of the model are 500 mm × 200 mm. The main variables in the numerical simulation are the crack embedding depth (ht) and crack depth (h). Each scenario is defined by ht , representing the intact layer thickness between the surface and the crack, which varied at 0 mm, 1 mm, 3 mm, 5 mm, 10 mm, and 15 mm. In each scenario, the crack depth h varies within one Rayleigh wavelength interval with a 1 mm increment. The crack width is 1 mm, and the crack orientation is vertical. 

Both the sensor configurations were employed in this study. SR1-SR14 are sensors in the pulse-echo configuration, while ST1-ST14 are sensors in the pitch-catch configuration.  The spacing between the first receiver and the exciter is 15 mm and the distance between two adjacent receivers (receiver interval) is 5 mm. Notably, the simulated cracks are positioned equidistantly 5 mm from the two sensors, SR14 and ST1. 

A five-cycle Hanning-windowed tone burst with a central frequency of 120 kHz is used as the excitation signal. An element length of 1 mm is chosen for the mesh generation to ensure a minimum of 10 elements per wavelength. Mortar, aggregates, and cracks are assigned as plane strain elements with reduced integrations (CPE4R). The total simulation time is 0.0002 s, with a time step of 5⨯10^-9 s.