sanju261991
Mechanical
I am simulating a sphere bouncing of a rigid plane in Abaqus Explicit as seen in the assembly below,
It consists of a axisymmertic semi circle for the sphere, with a velocity in th-y direction and an analytical ridig for the plane. The material is elastic, with E=9.3Gpa, Mass Density=900kg/m3 and poission's ratio 0.33
When the timestep is reduced to the range if 1e-10 the total energy varies greatly as seen in the image below,
Please help me understand this. The total energy must remain constant throughtout the simulation. THe simulation result are as expected when the timestep is set to automaotic, but incorrect for fixed timesteps of the range 1e-10.
It consists of a axisymmertic semi circle for the sphere, with a velocity in th-y direction and an analytical ridig for the plane. The material is elastic, with E=9.3Gpa, Mass Density=900kg/m3 and poission's ratio 0.33
When the timestep is reduced to the range if 1e-10 the total energy varies greatly as seen in the image below,
Please help me understand this. The total energy must remain constant throughtout the simulation. THe simulation result are as expected when the timestep is set to automaotic, but incorrect for fixed timesteps of the range 1e-10.