Inclined Load calculation plaxis 3D, Load-displacement curves

RE: Inclined Load calculation plaxis 3D, Load-displacement curves

Stefanos Papavasileiou — Mon, 22 Aug 2022 11:25:14 GMT

Dear Jozanga,

The only thing I can comment with this amount of information is just that the fact that you set the number of calculation steps to 1000 it does not mean that there will be 1000 steps. It is for the calculation kernel to solve the out-of-balance and determine how many steps are needed.

For instance, a linear elastic material can reach equilibrium within two steps. That is because the Numerical control parameter (behind the defaults setting) Max load fraction per step is by default set to 0.5. If you lower this property you can probably get more steps in the calculation.

As I mentioned before, if you need more assistance, please submit a service request. Then, one of our support engineers can help you in detail: https://apps.bentley.com/srmanager/ProductSupport

RE: Inclined Load calculation plaxis 3D, Load-displacement curves

Jozanga S. Fernandes — Mon, 22 Aug 2022 10:06:37 GMT

Hey Stefanos,

I used 1000 calculation steps and the graph looks like this.

It does not show a curve showing resistance at lower loads and then failure like the one on the right-hand side.

Is the load I am using too high?

RE: Inclined Load calculation plaxis 3D, Load-displacement curves

Stefanos Papavasileiou — Fri, 19 Aug 2022 13:51:41 GMT

Dear Jozanga,

The load activation is linearly connected to the SumMStage value. So, you can use the SumMStage for your graph.

You need to save more calculation steps than the default value (set to 1), in Input, Phases window. That is the setting called Max number of steps stored:
https://communities.bentley.com/products/geotech-analysis/w/plaxis-soilvision-wiki/45910/how-to-setup-the-number-of-steps-stored-in-plaxis-input

This will give you a more detailed curve.

If you need specific help, please submit a service request. Then, one of our support engineers can help you in detail: https://apps.bentley.com/srmanager/ProductSupport