I have attached a picture which shows 2 co axial tubes being compressed by heavy end plates. But the reduced modelling technique does not make much sense to me . IF someone could help in explaining the basic technicalities of the representative modelling, I would appreciate that.
Please find the attached pics for more details
Thanks
What is your objective of said analysis/modelling?. why you need reduced modelling technique?
From the figure it is understood that you are doing buckling analysis and applying compressive load on the end plate. You are also supplying stress-strain curve to the analysis i.e. doing material nL analysis.
Hi Inaam Qazi,
Successful modelling of the problem you propose is largely dependent on some additional details.
It is not clear are the tubes made of the same material or different ones. If the material of the tubes is the same then we must suppose that one of the presented stress-strain diagrams depicts behavior of the end plate's material.
If we consider the contact problem then we must think about conditions at contact zones.
As the first approach it is possible to model the problem as axisymmetric one. In any case we can consider 1/2 part of the system because the plane z=l/2 is the plane of symmetry.
Best wishes.
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