Replicate Loading Condition

[Sri21]

Hello,

I am trying to replicate the figure (1) loading such that I can apply load at one point figure (2) as I conduct in experiments.
The relationship between the loads are such that :
P2 = P*(a+b)/b and P1 = P*a/b where “a” and “b” are distances as shown in figure (1).

The main goal in trying to do this is that I am able to measure deflection at point Pt(1) where load is applied in figure (2).

The BC’s are such that the left face is prevented from moving in all 3 DOF. I have tried a couple of things which are explained below:

1) Used connectors between Pt 1 – Pt 2 and Pt 2- Pt 3. Note: Pt 1 is not connected to the model, i.e I created a datum point. Pt 2 and Pt 3 are two nodes on the model. I tried using different connector section but was unable to get my model to converge. I tried using “MPC Link” connectors between these points but was unsuccessful, i.e. model doesn’t converge.
2) I created a 3-D deformable wire part which is made of beam element and specified a really high modulus and inertia so they behave rigidly. The wire was connected to the model at Pt 2 and Pt 3 by using “Join connector”. Again was unsuccessful, i.e. model doesn’t converge. I even changed the “Join connectors” at these point to “Tie” constraints. Same issue where model doesn’t converge.

Can someone suggest me how I can overcome this issue and model correctly to apply the right loading as explained above? Any ideas are appreciated.

Thank you

 

[Mustaine3]

Why the connector or beam? Just apply the load to the solid structure at the location where it is needed. Take a look at the load "Surface Traction" in case you want the load inside your part at a partition.

 

[Sri21]

Hey Mustaine,

As mentioned, I need to find the deflection at point (1)in the figure. That is, in my experiments the load is applied at point(1). The load distribution on the solid structure occurs as mentioned in the formulas at point (2) and (3). That is load isn't directly applied at point (2) and (3) in my experiments but rather it is applied at point (1). I need deflection at point (1) so that I can calculate the compliance at point (1). Let me know if my explanation and/or my question is clear.

Thank you

 

[Sri21]

Also point (1) in the figure is not attached to the solid structure and acts independently w.r.t solid structure.

 

[Mustaine3]

I still don't know what you want to do and what the problem is.
You can apply the load wherever you want and measure the displacement at every node in the model.