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Aircraft Ground Flotation Analysis (CBR) S-77-1
Hi Everyone. I was wondering if there were anybody familiar with the document S-77-1 Procedures for Development of CBR Design Curves. My question revolve around Figure 19 and equation 47 about the thickness / squareroot of footprint area vs CBR/ Equivalent Pressure. They give the equation 47...- franc11HD
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- Replies: 8
- Forum: Aeronautic & Space engineering general discussion
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How to get Rotational Degrees of Freedom displayed in Patran
I have given up an answer in the Nastran forum. See if this helps.- franc11HD
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- Replies: 0
- Forum: MSC.Software: Patran
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Non-linear run Marc/Nastran Grid Force Equilibrium.
Hi, I used the Grid Force Output from a Marc run. I am trying to rebuild the equilibrium between two adjacent nodes linked by Beam element. When using a linear run, I easily, from the forces and moments on node A get the resulting forces and moments on node B by simpling using the forces... -
Bruhn Lug Analysis Supplement A
Hi, Got a question here about Supplement A in Bruhn lug Analysis (D1.13a). If I understand correctly, this states that knowing the axial strength of the lug (Min of Pbru or Ptu) the transverse allowable can be approximate by Fig. D1.15a. This (as written in the text) is based on ''great number...- franc11HD
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- Replies: 0
- Forum: Spacecraft engineering
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Clarification on buckling formula needed
Hi, I have been reading a lot theses days on the buckling subject. I have gone through many references and design manual, and a lot of web sites about when to use which formulas for buckling. For long colmun, I think it is clear that Euler is applicable. That is for the other formulas that it...- franc11HD
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- Replies: 2
- Forum: Spacecraft engineering
