Sorry for this, i'm being a bit 'post happy'
But,
I am wondering if there are any interesting cases
where the issue of stress analysis(of lack off)
was instrumental in the failure of piping systems.

What got me thinking here is the recent chemical safety board video on the recent BP explosion
http://powerlink.powerstream.net/002/00174/051222bp/BPAnimations.asx

the video refers to the Relief devices operating.

'History is a good teacher'

Yes in the UK.....

Some maintenance folks got creative at a plant in Flixborough England see... http://www.acusafe.com/Incidents/Flixborough1974/incident-flixborough1974.html

The switch they made from a system that had been properly designed / analyzed was ill fated.


30 years ago I got to work on a sister plants design somewhere else in the world.