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Linear Buckling (equation question)
Posted 1 janv. 2015, 02:49 UTC−5 Parameters, Variables, & Functions, Structural Mechanics 0 Replies
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I am trying to model linear buckling on a cylindrical geometry. I am using the "Bracket Linear Buckling" file as a guide and trying to reverse engineer the physics into my model. Here are a few things I don't really understand.
First, under definitions the tutorial calls for an analytic function and the expression is (F*cos((x+0.3)/5e-2*pi)). Where does this equations come from? is it exclusive to this problem? I have gone through linear buckling in my text books and can't seem to find where that comes from.
Second, the physics used in the tutorial is solid mechanics. Under boundary load the tutorial inputs the following load: load(P0,Z)*(Y>-0.3)+0 . I understand that the load(P0,Z) inputs P0 and Z to be in the equation defined under the analytic function. However, I don't understand what (Y>-0.3)+0 is doing. furthermore, Is this also a expression defined exclusively for the tutorial model?
I am new to the world of inputting equations into my physics. Thanks in advance for the help
Hello Christel Italiaie
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