Abaqus - Boundary Conditions Comparison of two models

[Pazza]

Hi everyone,
This is my first time posting here

I am looking to get some help with Abaqus,

I wish to compare two models and find the residual stress which causes a original model to deform to the other. The deflection between the two models can be calculated by other software.

I plan to do this by setting displacement boundary conditions to a number of node points the model which will force the first models mesh to deform the the shape of the other. Abaqus would then calculate the resulting stress which, if I am correct, would be the negative of the residual stress in the original part.

At the moment I am manually setting known displacements as boundary condition to nodes a simplified mesh over the original model.

I was wondering if there was a way to directly set the displacements as the second model to give a more accurate result.

Thanks for any input.

 

[Achy47]

Hello,

I am glad to see you reaching out for help with your Abaqus project. Comparing and analyzing models can be a complex task, so I understand the need for assistance.

Firstly, it is important to make sure that the two models you are comparing are similar in terms of geometry, material properties, and loading conditions. This will ensure a more accurate comparison and result.

To directly set displacements on the second model, you can use the "Coupling" feature in Abaqus. This allows you to transfer displacements from one model to another, thus eliminating the need for manually setting known displacements. You can find more information on this feature in the Abaqus documentation or tutorials.

Additionally, it is important to note that residual stresses can also be affected by factors such as material properties, thermal effects, and boundary conditions. It is important to carefully consider and account for these factors in your analysis.

I hope this helps and wish you success in your project. Please do not hesitate to reach out for further assistance.