method of 3-point bending simulation of composite hollow square section beam

[r034540m]

Hi everyone,

I'm currently working on a numerical simulation of a composite hollow square beam undergoing three-point bending.  I made the solid model in ACP and used static structural for the flexural test simulation. I applied the boundary conditions as shown in the figure. and the deformation results formed a "dimple" at the centre. Could anyone please explain whether this method is wrong for a 3-point bending test simulation? Also, why does this "dimple" formation occur ?

 

[Ashish Khemka]

Hi,

It looks load is concentrated and causing a sort of pinching. Please refer to the following video:

https://youtu.be/Tl1S93BL8ow?si=3eyJ0APMQ7ZlYN8p

Regards,

Ashish Khemka

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