I am trying to simulate a simple model in Abaqus- an elastic spherical shell being sucked into a rigid tube. The diameter to the sphere is greater than that of the tube and I want to study the large deformation of the shell into the tube. I am unable to define a load to simulate the suction pressure on the shell applied by the tube. I am using Pressure as the distributed load, which can only be defined for a particular surface. In this problem, the surface on which the suction pressure will be applied will constantly change as the shell enters into the tube. I would be grateful if anyone can help me defining such suction pressure.
How to write a user subroutine using VDLAOD
you could use contact interaction with tube being modeled as analytical rigid surface
what is the meaning of ' the suction pressure will be applied will constantly change as the shell enters into the tube '. Does it means that the location of the load change or its value?
Can you provide a schematic drawing to better understand the problem?
Thanks, Khaled Megahed actually the pressure is not changing it is constant value but the surface on which it acts will change constantly as the sphere is moving inside the channel.
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