Glamorous Beams
Verfasst: Fr 14. Sep 2012, 01:42
As a former engineer that used FE on a daily basis, I have always felt it the responsibility of the engineer to evaluate the tools used. Even though, I’m no longer doing FE work professionally and this is merely a hobby, old habits die hard. I’m evaluating Z88 for its suitability toward my current hobby. I know most of your effort is probably around using exotic solids and non-linear materials for some future version, but I’m hoping you can help me understand something I’m finding with Beams(2). I’m hoping, I just don’t understand the output.
I have a VERY simple test case… 2 nodes, 1 element, 1 boundary condition, 1 force. Here are the details and a zipped file of the project. http://z88.garmf.com/GlamorousBeam.zip
• Cantilever beam
• Length = 100 mm (in the X direction)
• Section: B = 1mm, H = 1mm
• Material: 1
• Node 0 constraint: x,y,z,rx,ry,rz = 0.
• Node 1 constraint: Fy = 1N
After running the analysis, these results check out as I would expect.
• Node 2 y deflection = 19.048
• Node 2 z rotation = 0.2857
• Node 1 Force y direction = -1.0
• Node 2 Force y direction = 1.0
• Max axial stress at x: My/I = Sigma xx = 600.0
The one thing that seems wrong… I’m expecting a shear stress (TauXX in the z88o3.txt file) of 1.0 and I find 0.0
What am I miss understanding?
Thanks for your help.
I have a VERY simple test case… 2 nodes, 1 element, 1 boundary condition, 1 force. Here are the details and a zipped file of the project. http://z88.garmf.com/GlamorousBeam.zip
• Cantilever beam
• Length = 100 mm (in the X direction)
• Section: B = 1mm, H = 1mm
• Material: 1
• Node 0 constraint: x,y,z,rx,ry,rz = 0.
• Node 1 constraint: Fy = 1N
After running the analysis, these results check out as I would expect.
• Node 2 y deflection = 19.048
• Node 2 z rotation = 0.2857
• Node 1 Force y direction = -1.0
• Node 2 Force y direction = 1.0
• Max axial stress at x: My/I = Sigma xx = 600.0
The one thing that seems wrong… I’m expecting a shear stress (TauXX in the z88o3.txt file) of 1.0 and I find 0.0
What am I miss understanding?
Thanks for your help.