{"id":359611,"date":"2024-03-29T14:23:37","date_gmt":"2024-03-29T14:23:37","guid":{"rendered":"\/forum\/forums\/topic\/mechanical-clearence-in-thermal-structural-analisys\/"},"modified":"2024-03-29T14:23:37","modified_gmt":"2024-03-29T14:23:37","slug":"mechanical-clearence-in-thermal-structural-analisys","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mechanical-clearence-in-thermal-structural-analisys\/","title":{"rendered":"Mechanical Clearence in Thermal-Structural analisys"},"content":{"rendered":"

Good evening,<\/span><\/p>\n

I’m working on a thermo-structural analysis in Ansys Mechanical involving two parts: a circular bar and a surrounding structure with a hole to fit the bar. There’s a small gap of about 0.1mm between them.<\/span><\/p>\n

After running the thermal simulation, I brought the thermal load into the structural analysis. My goal is to see how the stress from thermal expansion affects the hexagonal structure once the gap is filled.<\/span><\/p>\n

I want to specify that in the thermal analysis, I decided to set a “Bonded Contac Region”; even if unrealistic, due to the gap, I thought that this could be fixed by then adding a “Contact Resistance”. Instead in the structural analysis, I decided to put a “FrictionLess Contact” since in the future model I need to implement, the parts will not be “Bonded” to each other (no shared topology).<\/span><\/p>\n

I have a couple of questions to ask:<\/span><\/p>\n

1 – is Ansys able to understand this type of problem and transfer the mechanical stresses due to the thermal expansion from the bar to the structure once the gap is filled or do I need to set some specific contact condition to do so?<\/span><\/p>\n

2 – Do you have any suggestions on a better way to set up the problem?<\/span><\/p>\n

 Thank you in advance for the help.<\/span><\/p>\n

\"\"<\/span><\/p>\n

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