I am simulation Friction Stir Welding process using SPH method in Abaqus 6.14. Step-1 completed successfully; before Step-2, I am getting the error: "The executable explicit.exe aborted with system error code 1073741819". Mass scaling of 100 is used in all 3 steps. There is no other change except B.C.s between the steps, which seems okay to me. Please suggest a possible solution for this error.