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I am teaching myself to use NASGRO. I have version 3.0. I have had success running the program for simple problems ie cracks in skins under pressure loading. I want to move on to problems with more involved loading but inputing the spectrum is causing problems. I would appreciate it if someone...

Trying to find copy of 'analysis of stiffened curved panels under shear and compression' by Melcon and Ensrud. Journal of the aeronautical sciences/ Feburary 1953 pp. 111-126 I did get a copy in 2006 from Prost which was greatly appreciated. Unfortunately I filed it away somewhere and cannot...

Note that the document you reference D6-36238 is not FAA approved so that information cannot be used in analysis.

Crackman Did you get a chance to scan the answer key? Also, what is MAC 339? CS

Has anyone knowledge of a method for analyzing a bathtub fitting with a radius filler added to increase capability. This has arisen on a retrofit where they want to increase the capability but dont want to remove/replace the bathtub fitting. Thanks in advance for your advice/assistance

I dont have a title but I know that it should show a friction value for steel on steel of 0.15.

Does anyone have a copy of this reference. page3-55 table 3.2 of "Esbach's Handbook of Engineering Fundamentals", Fourth Edition, 1990 by Byron B. Tapley. Would appreciate a copy of table 3.2 Thanks

This is not a complaint !!!! You can download the stress course at ftp://ftp.apesolutions.com/pub/Stress_Course_for_Liasion_Engineers.pdf Does anyone have lesson 14 and 15. The pdf above stops at page 14-2. Many thanks

Hi I often have to interview stress engineer applicants and decided to put together a list of problems that I could use to test the applicants knowledge. I asked my collegues for their suggestions and was suprised by the limited response I received - surely it cant be that difficult to come...

Trying to find copy of 'analysis of stiffened curved panels under shear and compression' by Melcon and Ensrud. Journal of the aeronautical sciences/ Feburary 1953 pp. 111-126 Would really appreciate a copy. Thanks

The A330 is based on the A300 fuselage. Are the floorbeams the same on both or were they redesigned for the A330?

Hi All I am working on a freighter floor and have to account for c.g. shift of the contents of the contains. Do I use 5%, 10% or other. Also, do I have to account for adjacent containers shifting in different directions. Is there and certificating authority guidance on this. Any information...

There is little data available for floor fixity on older A/C. You could use the values for 777 (similar size)ie rotational stiffness = 6,000,000. By the way I am working on a 737 - same cross section as your 757. I have seen 50% used for frame fixity. I guess by 40% fixity you mean to use a...