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ANSYS LINEAR EULER BUCKLING ..simple verification needed

Submitted by hjishi on

 

 1) anaylitical model:

Vertical Cylindrical beam under axial compression load

Height: 26.5mm, Radius: 1.25mm, E: 200000, Load factor k: 2,
Pcritical: 1,347N, Displacement: 0.0364mm 

 2) Beam188 model worked fine with results similar to
analytical one. (txt file attached)

3) Solid186 mold under predicts by a factor of 4 (txt file
attached)

 

why does the solid 186 element give different results?

 

Thanks

 

H Jishi 

i figured it out, a pressure load on the upper face of the column induces a bending moment about hte coulmn's c.m... applying a point load produces results similar to the analytical and beam186 simulation

Tue, 05/13/2014 - 12:17 Permalink