Re: [PSUBS-MAILIST] endcap/bulkhead question

[MerlinSub@t-online.de (Carsten Standfuss)]

Hi Emile,  inverted caps are fine 
the only problem is the welding of the inside weld.. 

The build the german subs of WWI this way - but this caps were rivet..

Make a drawing of the detail - and figure out how to weld..

;-) Carsten

> Emile schrieb:
> 
> Hello all,
> 
> For my future psub I consider an inverted endcap or bulkhead
> See the "drawing"of the pressure part.
> ______
> )_____(
> 
> At this configuration the sphere shelfs only have a tension loading
> what is preferrable.
> I lookt at almost every psub design on the site but no other sub has
> this configuration, exept for the Spurdog.
> Am I wrong in my toughts and are there high stresses in the sharp
> transition from the sphere shelf to the circular hull??
> 
> hope someboy knows,
> 
> Emile D.L. van Essen
> www.AiResearch.nl