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connector nonlinear elasticity - scaling

connector nonlinear elasticity - scaling

connector nonlinear elasticity - scaling

(OP)
I have been trying to make the following work on and off but have not made any significant headway. Any help would be much appreciated.

I would like to scale the non-linear elastic (force vs. disp.) behavior of a chained set of connector elements until some condition (say, a certain level of stress/strain in a neighboring structure) is met. Now, if I apply a displacement to one end of the connector of, say 5 units, then I want the displacement values in the table with the non-linear elastic behavior (that is present in the INP) to go up to 5. Also, I want the force values to be scaled by an array that goes from 0 to 1.

Bottomline:

1) Can I scale both the force and displacement values? If so, how? [A script?]
2) How do I look for some condition? [Sensor/UAMP?]
3) Alternatively, can I replace the force and displacement values in the non-linear elastic behavior based on some condition in a loop?

If you have previously worked on this, a very simple INP with one connector would be a huge help!

http://www.eng-tips.com/faqs.cfm?fid=376

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