kindleger.blogg.se

Meshfree simulation of spall fracture
Meshfree simulation of spall fracture











meshfree simulation of spall fracture

Finally, the effects of the peak compressive stress, the tensile strain rate, and the loading rate on the spallation are more » further investigated. Moreover, the effect of the spall parameter in PAGOSA with FLIP+MPM on the numerical simulation is also analyzed by investigating the free surface velocity. To further show the ability of PAGOSA with FLIP+MPM to predict fracture in ductile material, the numerical results are compared with the experimental results and other published numerical results. The convergences of PAGOSA with FLIP+MPM-based on both the mesh size and the marker density-are investigated by monitoring free surface velocity. Then PAGOSA with FLIP+MPM is used to model complex spall in ductile material, which is a challenging problem in engineering applications. In both of two benchmark problems, the PAGOSA results and analytical solutions are also presented for comparison. Furthermore, the ability of PAGOSA with FLIP+MPM to capture the fracture in material is shown by a simple stretching fracture in ductile material. The merit of PAGOSA with FLIP+MPM to solve the advection problem is first illustrated by a solid piston periodically moving in a sealed tube with air. N this work, a hydrocode PAGOSA with FLIP+MPM is presented and exercised to investigate the fracture in ductile material.













Meshfree simulation of spall fracture