Recent content by Marcelo Rodrigues

Mech_Engineer, Thank you very much for all the links and ideas! I appreciate that. Yes, I considered buying a bell jar for vacuum, but the equipment I am designing would have penetrations points on the top and bottom. So the device will be a glass cylinder with ends closed by aluminum thick...

256bits, Thin walled because (for sure) the t/r ratio will be <0.1. I need a point to start. Axial load is present but its stress is also compressive and lower than hoop stress. I am not considering fatigue yet. But intend to do later. I am trying to keep the problem as simple as possible at...

cjl, yes indeed. In another forum, an engineer warned the problem is buckling, not stress. Probably this is the reason for those unlikely numbers I got. Nidum, by my readings so far, the glass will have an elastic distortion and suddenly will break (no plastic phase). So you are right about...

Hello! I am designing a vacuum chamber made of a vertical glass cylinder free of contact from any other structure, except by the top and bottom where aluminum disks seal the device. Temperature is the same inside and outside. I found on several books the following formula for the hoop stress...