How to build a deformable rigid?

[feitang]

Hi,

Here's the relevant manual page:
http://obi.virtualmethodstudio.com/manua...aints.html

This behavior is called plasticity. When deformed, plastic materials absorb part of the deformation into their rest shape. You can control the plastic behavior using plastic yield, creep and recovery parameters, see the above link for details.

kind regards,

Hi, Josemendaz,

Thanks for your quick reply. I have encountered another problem, and I am really confused about it. 
I set the ball and barrel with plastic yield 0.2, and build a hand model to grasp them. however, when I start the simulation, the ball and barrel immediately shrank, as the attached video shows.
I don't know how to fix this problem. Could you help me?

kind regards,
Fei