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Large different displacement results using beam elements and solid elements

Question asked by Liu Zhixiong on Jun 11, 2017
Latest reply on Jun 13, 2017 by Ryan Dark

The same geometry model. Two methods are used to calculate the displacement of the structures. The results are so different.

First method with the beam unit: 

-The same load:10000N

-Fixture: 4 joints

-Displacement 12.1mm

Second method with the solid unit: 

--The same load:10000N

-Fixture: 2 face

-displacement  23.6mm


Who can explain these?