How can I apply an enforced displacement of 10mm/min on a node for a lapshear simulation?

Stephan Niggemann_20804

Dear all,

I've created a lapshear model to analyse the adhesive, which connects the two sample sheets. Now, I want to apply an enforced displacement on one sample sheet by SPC. The enforced displacement should be 10mm/min. 

As far as I know, the enforced displacement has the unit [mm] by default. How can I apply the 10mm/min loading on my model?

Thank you very much and regards,

Stephan 

 

Omar_NDIAYE

Hi Stephan,

I guess here you are interested in Transient analysis as in a regular static analysis, the physical time is not considered.

In case you want to conduct a nonlinear transient analysis, you need you input your velocity under the TLOAD1 entry (Load type = VELO). Of course, you will need to convert the velocity in a consistent unit system (like mm/sec if your model is in mm, MPa, ton, sec).

There is a tutorial about nonlinear transient with velocity input in our documentation here.

Hope this helps.

Thanks,

Omar.

Prasad Reddi_20512

Hi Stephan,

You can use IMPDISP card to apply prescribed displacement varying with respect to time using a curve.

Below is the keyword manual help:

https://2021.help.altair.com/2021/hwsolvers/rad/topics/solvers/rad/impdisp_starter_r.htm?zoom_highlightsub=IMPDISP

Hope this helps.

Cheers,

Prasad

Stephan Niggemann_20804

I forgot to mention that I use Optistruct for the simulation.