Grumman Stress Manual?

[stresscalcs]

Is there anybody out there who can perhaps help with the possible contents of a Grumman Stress Manual (if that is what it was called).

I was recently asked about a reference (date unknown to me) for Grumman's analysis for curved panels in shear.
The question was stated as Grumman's analysis, not Northdrop-Grumman, so I guess it might be an old reference.

The original source you normally see in older documentation for curved panels in shear is NACA. See relevant Bruhn section for example. Thus I guess the Grumman methodology may well be the same NACA data, but modified for Grumman internal use.

Anybody got any ideas?

 

[rybose]

All curved panel shear stress methods that I've seen reference NACA TN 1348. Many NACA papers (TN 2661) reproduce the plots from this document.

 

[edbgtr]

stresscalcs

Grumman Structures Manual, p B5.21-1, Dec. 1969 references NACA TN 1345, 1347 and 1348 and has interaction curve chart for elastic buckling Rs, Rc. See attachment.

Ed.

 

[stresscalcs]

Hallo edbgtr

Many thanks for your contribution.

Not only have you confirmed what I think we all thought,
but you have proved it. A better answer I could not wish for.

Many thanks again

Stresscalcs