Numerical Simulation of Fracture and Maximum Bearing Capacity under Edge Constraints for Ceramic Slates

To explore accurate numerical simulation methods for fracture of ceramic slates, their mechanical parameters were obtained using three-point bending tests, thus leading to isotropic characteristics of mechanical properties on the plane. The C3D6 unit was determined to be the calculation unit after comparing the three finite element simulation results. The calculation results of six groups of ceramic slate were compared with the experimental data, with the maximum error to be 8.9%. The reliability of the model and the accuracy of the mechanical parameters are verified. Finally, the stress analysis of ceramic slate under edge constraints was performed using this model and the variation rule of their maximum bearing capacity was obtained, thus offering an analytical basis for the application of ceramic slates.