Space Debris Capture Simulation

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Last Post by Saha.B 3 weeks ago

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Saha.B

Topic starter

May 12, 2026 4:33 pm

(@saha-b)

Unpaid Intern

Joined: 3 weeks ago

Hello everyone,

I am working on a space debris capture simulation using kevlar net. When I run the simulation, the net either disappears or does not even show up in the post process. The following are all the parameters i have on the net, I am also attaching the key file for reference. If anyone can guide me on how to fix this issue, i would really appreciate it.

Net:

Size: 10cm x 10cm
Thickness of the kevlar thread: 1.1mm
Mesh: 2D tria shell elements
The net needs to move towards the debris, capture it and wrap around it.
Material model: MAT_58_LAMINATED_COMPOSITE_FABRIC
Section shell card: ELFORM = 16 (fully integrated shell element)

Debris:

Size: 4cm in diameter, sphere shape
Mesh: 3D tetra elements
Solid rigid body and is fixed in all directions
Material model: MAT_20_RIGID
Section solid card: ELFORM = 1 (constant stress solid)

Velocity: INITIAL_VELOCITY_GENERATION = 4.5m/s

Contact parameter: CONTACT_AUTOMATIC_SURFACE_TO_SURFACE

I also activated CONTROL_TERMINATION, CONTROL_TIMESTEP, CONTROL_ENERGY, and DATABASE_BINARY_D3PLOT cards too.

I do not see any errors and it says normal termination, but I cannot see the net moving closer or in fact doing anything other than disappearing or staying in the same place.

I really appreciate if anyone can help me with this, I have been trying to make this work for a couple of weeks. Thank you so much!

meshed model 05_07.k