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Adding heat flux as a time step over a weld

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This is a linear transient heat transfer analysis case.You could refer to the below online help tutorial or download free on thermal analysis with OptiStruct using below link.

OS-T: 1090: Linear Transient Heat Transfer Analysis of an Extended Surface Heat Transfer Fin

https://altairuniversity.com/free-ebook-thermal-analysis-with-optistruct/     (Refer chapter 7 of eBook)

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Thank you so much for this information. But in the above analysis, there is a time dependent loading on a single point. I need help for activating loads at different nodes along the weld, at different time intervals. can you please suggest something about this.

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