"Free" boundary conditions
Dear Ansys Community
I'm currently working on my Bachelor Thesis regarding the distortion of a local heat treatment on a component. One of the aims of my Bachelor Thesis is to understand this kind of distortion with a finite element simulation with ANSYS workbench 2019 R2.
For this reason, I want to simulate in a simple test-case how the temperature- and stress field propagates. First of all I want to understand the boundary conditions in a steady state thermal analysis connected to a structural analysis. How does the stress increase due to a local heating? See attached Picture for the thermal conditions. (Sheet metal dimensions 500x800x1.27mm)
I want to simulate how does a simple structure like that behave under these circumstances.
Heat flux in the middle of the plate to increase the temperature to around 760°C. Free convection of the whole body.
To calculate the stress and strains I have to define the boundary conditions in the structural analysis.
In an experimental setup I would like to lay this plate on the floor without clamping and heat it in the middle to about 760°C. Because of the local heat input and the non-symmetrical geometry, elastic/plastic stresses and deformations build up. How can I reproduce this free support on the floor in a digital environment? I tried it with remote displacement but i'm not sure if this is the right approach. I expected a symmetrical deformation.