Learning Forum

[patrick.steiner]

Hello All

I'm looking for a way to get the diameter change of  borehole in a part when its heated. My part is a circular plate with different hole sizes. The holes are located on a circular pattern around the Center, but with different distances of the Center. The part is heated up to 1050°C for a soldering process. I'm looking for the deformation of each hole and its diameter change. I tried different methods to get the results ( with remote point, local coordiante systems ...) but I don't get satisfying results. I always get the result based on a coordiante system based on the global system  prior  of the deformation . Is there a way to create a coordiante system with is moving with the solution?  A element based system is moving, but i doesn't give me information of the hole ( or I'm too stupid).  For some positions ( which a located on the x/y axes) I can calculate the deformation by addl, which works fine, as i chan assume the points of the elliptic shape after the heating. By for other positions is hard, especially because the hole could influence each other. 

Is the a way to create a new coordinate system in the deformed part and map the results to it, or even better to move the local system with the deformation.  I know that its possible in classic, but I don't want to use classic for this job. It's too long from last usage.

[akhemka]

Hello,

Avoid trying to create a coordinate system that follows the deformation and instead measure the hole geometry in the deformed configuration. For each hole, create a named selection of the hole edge, extract the deformed nodal coordinates, and then calculate the final diameter by measuring the distance between opposite points. Local coordinate systems in Mechanical are generally based on the original geometry and do not truly move with the solution, so relying on deformation components can be misleading for holes located away from the global axes.

 

Regards,

Ashish Khemka