r/ANSYS_Mechanical

Hi,

I have a simple static structural model that is constrained by two beam connections to represent bolts onto a baseplate fully constrained. I have preloaded the bolts as structural fasteners to EN 1090.

When using beam probes to extract the forces, I notice the preload is measured (obviously) but then when load is applied in the subsequent steps, the force increases. This is as expected but I am not entirely sure how to assess this to Eurocode bolt checks - I thought the preload would be subtracted from any net increases to axial forces - so whatever the net increase is would be the value you assess for tension resistance checks (seeing as EC3 doesn't say for you to add preload onto your tension resistance checks) but I am not entirely sure. Anyone in this group able to advise?

Many thanks,

Shows modelling plies (applied to whole tank) the satck up is defined as [+-30,90]2s

I am trying to run a analysi with pressure as BC in this CFRP based SRM Casing project. but i am not getting the fibre direction correct, the dome area looks reallt wrong and how am i suposed to correct it,The rosste is correct - the x axis is along the comspite SRM casing x axis and Y axis is along the radius.
i got to knwo about CADWIND/CADFILL softwares - These are not avaliable - so how can i properly manage the analysis ?