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Greg, thanks for your input. I found the discussion you've mentioned on Yahoo groups, as well as some pdfs. One of my first thoughts was, too, possible problems with the torsional behavior of a beam. I wonder if anyone has actually made any further study or developed any workarounds for this...

Hello, as far as I know, (and the CalculiX manual seems to support it) the B32 element in CalculiX FE library actually is a 20-node 3D solid. To my understanding (and as have been in FE software I've used before), a 'true' 1D beam element in FEA has a precise analytic solution, while solids...

Seems like a negligent lack of geotech investigations. Have any engineering details been published?

I made several significant projects with Robot - lightweight steel pavillions, concrete frames, retrofit of old industrial cast-in-situ RC building etc. The lack of support material is really frustrating, But, anyway, Robot ME is a great engineering software despite some significant...

Messara, I think it is this formula that you need: Rb = (0,77– 0,001R)R where Rb - cylinder strength, R - cubic strength.

Nicolas, I'm not that into dynamics but I think you will find this Sandia labs report useful. It's dated 1998 and is freely downloadable: http://infoserve.sandia.gov/sand_doc/1998/980260.pdfhttp://infoserve.sandia.gov/sand_doc/1998/980260.pdf