#14 ABAQUS Tutorial: Defining reference points and rigid body constraints

[@shonej3247]

Amazing work, you have just saved my degree

[@anubhab_IITG]

why it is required to create reference point and what does it mean to connect it to the surface, i mean what is the benefit out of it?

[@user-lj5nu9rk5k]

perfect videos, hello sir , may you share some videos about bridges or bridge deck designing as well , i would like to learn more pls

[@tanyaradzwamurapa1503]

Thank you for the video. Can you help with how put a constraint of an undeformable shell with a deformable part

[@anacarolinasilveirareis31]

There is same way that we can use a control point in a block in movement in abaqus? Making the control point move with the block

[@adnanalbukhaiti2027]

Sir Ahmad i did like your object but i fond some mastic can tell me what should i do ? the error is (Node 1195 instance column-1 has two rigid body reference nodes 3 (assembly) and 2 (assembly). A node may be associated with only one rigid body)

[@yahyahamdi4941]

Node 2654 instance column-1 has two rigid body reference nodes 3 (assembly) and 2 (assembly). A node may be associated with only one rigid body

[@AElkady]

It seems you made a double assignment for a reference point. Please check your constraints definitions within the interaction module.

[@benmeloukaabdelkader737]

Thank you sir for this video.

[@caraYmii]

This was really helpful, thank you!

[@ehsankk1636]

Thanks for nice tutorial.

[@lintapaul3108]

Sir What is the difference between tie(nodes) and pin( nodes)? Which one would be better for a CFST Column- concrete filled steel column with outer steel tube and inner concrete core Please reply 🙏

[@AElkady]

Tie transmits all of the node degrees of freedom to the attached body. Pin transmits only translational degrees of freedom. The choice depnds on the mechanism being simulated. A good illustration is show here: catiadoc.free.fr/online/anlug_C2/anlugprtconstraints.htm

[@Niv51]

Sir, why are we adding constraints ? Can't we apply the loads and bc directly ?

[@苗佳旭]

It seems to prevent stress concentration, but the other videos teach you to use coupling constraints

[@dr.manaralfadul7491]

in which videos he used coupling constraint? @@苗佳旭

[@benmeloukaabdelkader737]

Thank you sir, i have a problem in my work , please my question is ((can i create a reference point RP-2 for the column-top in (0,2000,0) and tie him to the appropriate surface . if i have a pressure load in this surface for example ? )) . Thank you very much again.

[@AElkady]

You can assign a an equivelant load to the RP.

[@benmeloukaabdelkader737]

@@AElkady thank you very much sir for reply.

[@benmeloukaabdelkader737]

@@AElkady Can I use only one reference point and tie him to multiple appropriate surfaces spaced out that have the same pressure?

[@1p1p3p4p5]

you saved me

[@Sam-bq3jh]

can we change the position of the origin point?

[@AElkady]

Not sure what you mean by "origin point". You can always move parts with respect to the datum corrdinates.