Joint Bypass loads/stress calculation

[Worldtraveller]

I recall working with an engineer way back in the day to develop a one dimensional 'FEM' to calculate joint stresses based on the number of rows, layers of material, fastener material, and geometry. It didn't have the fidelity of a full on 3D FEM, but it was fast, pretty easy, and reasonably accurate.

Does anyone here know of an open source version of something like this, either a program, or preferably a spreadsheet. I could probably develop one again, but I'd hate to re-invent the proverbial wheel all over again.

That'll teach me not to back up my HD.....it's one of the few programs I couldn't recover after my last HD crash.

 

[rb1957]

look into Michael Niu "Airframe Structural Design" pp232.

research compliance models.

it's an easy s/sheet to write.

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