Design and Stress Analysis of Extraterrestrial ... - The Black Vault

E T and Ep are the moduli of elasticity for the material of
the pipes and the pipe grid;
SK is the housing wall thickness;
a T and aK are the coefficients of linear expansion for the
pipes and the housing, respectively.
e and 0.
Function f(e) is
determined from Table 4.3 as a function of
Minimum effective panel thickness is
Table 4.3.
I" f ) " 'I ' '(')
£-o I .3=O,ClS • --' I 5 =O,.5l.
0 0.205 0,204 4 0,020 0,012
I. 0.200 0,190 5 0,015 0,005
2 0,140 0,120 6 0,010 0,001
3 0,040 010,30 7 0,007. 0
Stability analysis of thin-wall cylindrical
shells under the effect of compressive loads
Critical lengths can be determined from formula [12]
L =1,642 VT12D
__
or from the graph in Fig. 4.38.
Case 1. The shell is loaded with external force (Fig. 4.39).
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