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Exam Sol 12/13 Ymoment
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tskin 0.05 R_outer(tip) 24
E 1.0700E+7 R_outer(tip) 9
S1 -37685 -0.006 0.135 1 0.05 a 18 n 6
S2 -40616 -0.006 0.18 1.125 0.064 Δz 32
S3 -34455 -0.006 0.08 0.875 0.04 Δy 20
1 2 3 4 5 6 7 8 9 10 11 12 13
ele type Area r(c.g) θ z' y' d = Z' σ linear W W1 Wcor W1cor
1 S2 0.18000 43.41250 -20.00000 43.41250 -40616.000 1.5419E+0 5.0316E-1 1.025022817 0.33448113
3 S1 0.13500 32.00000 -31.47500 32.00000 -29938.658 1.7960E+0 5.8605E-1 1.619685744 0.528529032
5 S1 0.13500 -32.00000 -31.47500 -32.00000 29938.658
6 2.51327 28.81012 2.35619 -52.37183 -20.37183 -52.37183 48998.200
7 S2 0.09000 -63.41250 0.00000 -63.41250 59327.661
1 2 3 4 5 6 7 8 9 10 11 12 13
ele b' Area r(c.g) θ z' y' d = Z' σ linear R avr r/t b avr b
4 6.3190E+1 3.1595E+0 0.0000E+0 -3.2000E+1 0.0000E+0 0.000 curve C 64.2500 64.2500
2 1.7527E+1 8.7636E-1 10.80380 0.78540 3.9639E+1 -2.7639E+1 3.9639E+1 -37085.986 11.7500 2.3500E+2 18.4569 18.0000
14 1.9487E+1 9.7437E-1 4.4000E+1 -1.0000E+1 4.4000E+1 -41165.655 curve C 39.1667 39.1667
Ae total 7.7290E+0 Iyy 8.4816E+3 f1 0
Ae total z' -1.3272E+2 K2 1.1790E-4 f2 -1.1790E-4
z= -1.7172E+1
First Etration
Stringer
Type
Failing
Stress (Psi)Failing Strain Area (sq.in) Height (in) Thick. (in)
upper lower upper lower t P c (P/t)equ
Fi 1.5708 1.5708 Fi 1.5708 1.5708 skin 0.05 0.8 1 32
R_mean 12.0000 32.0000 R_mean 11.5000 30.6667
b 18.8496 50.2655 b 18.0642 48.1711
14 15 16 17 18 19 20 21 22 23 24 25 26
Wtotal Atotal ε linear σ trueK=
σtrue/σlinearK s.lag Ae Ae z' z = z'-z Ae z2 d = Z σ linear F
1.693985076 0.26470 -6.000E-03 -40616.000 1.000 1 2.6470E-1 1.1491E+1 6.0584E+1 9.7156E+2 6.058E+01 -40616.00 -1.0751E+4
2.676743809 0.26884 -4.423E-03 -37096.828 1.239 1 3.3311E-1 1.0660E+1 4.9172E+1 8.0542E+2 4.917E+01 -32964.98 -1.0981E+4
0.13500 4.423E-03 47322.776 1.581 1 2.1339E-1 -6.8284E+0 -1.4828E+1 4.6920E+1 -1.483E+01 9941.083 2.1213E+3
2.51327 7.238E-03 62670.160 1.279 1 3.2146E+0 -1.6835E+2 -3.5200E+1 3.9830E+3 -3.520E+01 23598.507 7.5859E+4
0.09000 8.764E-03 64537.487 1.088 0.1246 1.2194E-2 -7.7328E-1 -4.6241E+1 2.6074E+1 -4.624E+01 31000.250 3.7803E+2
4.0379E+0 -1.5380E+2 5.8330E+3 5.6626E+4
14 15 16 17 18 19 20 21 22 23 24 25 26
Zl Kc t/b σ criticalK=
σcr/σlinearK s.lag Ae Ae z' z=z'-z Ae z2 d = Z σ linear forces
2.8016E-1 14.82 7.7821E-4 -8.6793E+1 1 1 3.1595E+0 0.0000E+0 1.7172E+1 9.3162E+2 1.717E+01 -11511.95 -3.6372E+4
5.2609E+2 300.00 2.7778E-3 -2.2386E+4 6.0363E-1 1 5.2899E-1 2.0969E+1 5.6811E+1 1.7073E+3 5.681E+01 -38086.51 -2.0147E+4
4.5957E-1 6.95 1.2766E-3 -1.0947E+2 2.6592E-3 1 2.5911E-3 1.1401E-1 6.1172E+1 9.6958E+0 6.117E+01 -41009.86 -1.0626E+2
3.6911E+0 2.1083E+1 2.6486E+3 -5.6626E+4
sum 0
Mult
station (0) station (18)
Fir
27000
27
My = - F z
6.5134E+5
5.3996E+5
3.1456E+4
2.6702E+6
1.7480E+4
3.9105E+6
27
My=-Fz
6.2457E+5
1.1446E+6
6.5001E+3
1.7757E+6
5.686E+06
5.6861E+6