Geometric nonlinearity of axial member

Numerical methods and mathematical models of Elmer
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Sayan
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Joined: 06 Dec 2020, 12:44
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Geometric nonlinearity of axial member

Post by Sayan »

Hiii team,
In the attachment I tried to apply axial load in beam with geometric nonlinearity..I changed load every time and found out the value of displacement at end point..But it's showing linear relationship..Even at high load displacement without nonlinearity is coming more than nonlinear one... which should be just opposite...Is there anything wrong in this?
Attachments
load_vs_displacement[1].xlsx
(8.9 KiB) Downloaded 133 times
damaged.msh
(58.1 KiB) Downloaded 133 times
case.sif
(2.17 KiB) Downloaded 130 times
kevinarden
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Joined: 25 Jan 2019, 01:28
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Re: Geometric nonlinearity of axial member

Post by kevinarden »

I don't know of any geometric axial non-linear behavior in tension. Especially with displacements that small. IN compression their could be buckling.
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