Crash test of chassis shows 1000 hours
I'm performing a chassis crash test analysis on ANSYS Explicit dynamics. I'm using a chassis model, along with a wall. I have meshed both the geometries, and given the velocity of chassis, along with fixed support for the wall. When I start to solve, it shows me about 1200 hours remaining. I have specified the end time as 0.001s, and default number of cycles. What can be done? Thanks in advance.
The mesh size I have applied is 4 mm near nodes, and 6 mm at tubes with no trim. Errors occur in meshing when I increase the mesh element size. I have applied tetrahedrons to the chassis members.