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How to define the changing disp(dx,dy) according to the force

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Cathy039

Civil/Environmental
Sep 15, 2017
14
The beam has changed position from AB to A^B^ because of the force on it. I am supposed to define the changing disp according to force using udf.
In my opinion, UEL is applied for defining the disp, vel,acc, and their differentials, but how to define the relationship of the changing position of point A and B with the force on it?
Thank you in advance.
 
 http://files.engineering.com/getfile.aspx?folder=06eddd42-e354-41cc-98dd-b3260fa8efdc&file=Doc1.pdf
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