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Beam to beam elements connectivity

Submitted by pateljay26 on

Hello All,

 

Currently, I am trying to model a layered beam one on top of other. I started with 3 layers with leaving a small gap (0.01 mm) in between. I am interested in connecting the nodes of top layer (one line representing a beam) to the adjacent beam having same number of nodes through beam elements. To be more clear, merging nodes with same element type connectivity (beam to beam).

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 

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Submitted by SIMULIA on

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Dynamic neck formation can "ignore" a deep grove in a tensile specimen.....

Submitted by D.Rittel on

In this movie taken at 1 Mfps using our new Kirana camera (courtesy Y. Rotbaum), one can see a dynamic tension test of a grroved specimen in a tensile Hopkinson bar. The groove is relatively sharp and 10% of the diameter in depth.

It so happens that the dynamic neck inception occurs outside the notch area, in other words a strong geometrical flaw does not dictate the failure locus. We have performed over a hundred of such experiments. This is a very interesting and challenging observation.... 

 

Combined hardening parameters

Submitted by far_jod on

Hi everyone
I am trying to use Abaqus with combined hardening (kinematic + isotropic ) material. Structural milled steel strain-stress curve was obtained through tensile coupon test (ASTM E8).
Please let me know how I can extract material property (C , ɣ , Q and b ) for property input?
It is my first approach to martial plasticity so any detailed explanations or examples would be appreciated.
Regards
Farzad