|
Table B-2. 8-sided Spar, Polygon Exterior
|
|
Ratio A
or
I.D./O.D.
|
Ratio (M)
or
(O.D./L)
|
Ratio (K)
or
(H/L)
|
Weight Saving at same size
|
Strengh Loss at same size
|
Outside Waste
|
Size Increase for same strength
|
Weight Saving at same strength
|
Arbitrary Score
|
|
|
|
|
(%)
|
(%)
|
(%)
|
(%)
|
(%)
|
|
| 1.00 |
2.441 |
0.093 |
84.55 |
72.86 |
0.41 |
38.54 |
70.35 |
31.81 |
| 0.99 |
2.445 |
0.104 |
82.76 |
69.98 |
0.46 |
35.10 |
68.53 |
33.43 |
| 0.98 |
2.448 |
0.116 |
80.99 |
67.20 |
0.51 |
32.14 |
66.80 |
34.66 |
| 0.97 |
2.451 |
0.127 |
79.23 |
64.50 |
0.56 |
29.55 |
65.14 |
35.59 |
| 0.96 |
2.455 |
0.139 |
77.49 |
61.88 |
0.62 |
27.27 |
63.55 |
36.28 |
| 0.95 |
2.458 |
0.150 |
75.77 |
59.34 |
0.67 |
25.23 |
62.01 |
36.78 |
| 0.94 |
2.462 |
0.162 |
74.07 |
56.88 |
0.72 |
23.41 |
60.52 |
37.11 |
| 0.93 |
2.465 |
0.174 |
72.39 |
54.50 |
0.78 |
21.76 |
59.07 |
37.31 |
| 0.92 |
2.468 |
0.185 |
70.72 |
52.19 |
0.83 |
20.26 |
57.66 |
37.40 |
| 0.91 |
2.472 |
0.197 |
69.08 |
49.96 |
0.89 |
18.90 |
56.28 |
37.39 |
| 0.90 |
2.475 |
0.209 |
67.45 |
47.80 |
0.94 |
17.65 |
54.94 |
37.30 |
| 0.89 |
2.479 |
0.220 |
65.84 |
45.71 |
1.00 |
16.50 |
53.63 |
37.13 |
| 0.88 |
2.482 |
0.232 |
64.24 |
43.69 |
1.06 |
15.44 |
52.35 |
36.91 |
| 0.87 |
2.486 |
0.244 |
62.67 |
41.74 |
1.11 |
14.46 |
51.09 |
36.63 |
| 0.86 |
2.489 |
0.256 |
61.11 |
39.85 |
1.17 |
13.55 |
49.85 |
36.30 |
| 0.85 |
2.493 |
0.268 |
59.57 |
38.03 |
1.23 |
12.71 |
48.64 |
35.93 |
| 0.84 |
2.496 |
0.279 |
58.05 |
36.27 |
1.29 |
11.92 |
47.45 |
35.52 |
| 0.83 |
2.500 |
0.291 |
56.54 |
34.58 |
1.35 |
11.19 |
46.27 |
35.08 |
| 0.82 |
2.503 |
0.303 |
55.06 |
32.94 |
1.41 |
10.51 |
45.12 |
34.61 |
| 0.81 |
2.507 |
0.315 |
53.59 |
31.36 |
1.47 |
9.86 |
43.98 |
34.12 |
| 0.80 |
2.510 |
0.327 |
52.14 |
29.84 |
1.53 |
9.26 |
42.86 |
33.60 |
| 0.79 |
2.514 |
0.340 |
50.71 |
28.38 |
1.59 |
8.70 |
41.76 |
33.06 |
| 0.78 |
2.517 |
0.352 |
49.30 |
26.97 |
1.65 |
8.17 |
40.67 |
32.50 |
| 0.77 |
2.521 |
0.364 |
47.90 |
25.61 |
1.72 |
7.68 |
39.59 |
31.92 |
| 0.76 |
2.524 |
0.376 |
46.52 |
24.31 |
1.78 |
7.21 |
38.53 |
31.32 |
| 0.75 |
2.528 |
0.388 |
45.16 |
23.05 |
1.84 |
6.77 |
37.49 |
30.72 |
| 0.74 |
2.531 |
0.400 |
43.82 |
21.85 |
1.91 |
6.36 |
36.45 |
30.10 |
| 0.73 |
2.535 |
0.413 |
42.50 |
20.69 |
1.97 |
5.97 |
35.43 |
29.47 |
| 0.72 |
2.539 |
0.425 |
41.19 |
19.58 |
2.04 |
5.60 |
34.42 |
28.83 |
| 0.71 |
2.542 |
0.437 |
39.91 |
18.51 |
2.11 |
5.25 |
33.43 |
28.18 |
| 0.70 |
2.546 |
0.450 |
38.64 |
17.49 |
2.17 |
4.92 |
32.44 |
27.52 |
| 0.69 |
2.550 |
0.462 |
37.39 |
16.51 |
2.24 |
4.62 |
31.47 |
26.86 |
| 0.68 |
2.553 |
0.475 |
36.15 |
15.58 |
2.31 |
4.32 |
30.51 |
26.19 |
| 0.67 |
2.557 |
0.487 |
34.94 |
14.68 |
2.38 |
4.05 |
29.56 |
25.51 |
| 0.66 |
2.561 |
0.500 |
33.74 |
13.82 |
2.45 |
3.79 |
28.62 |
24.83 |
| 0.65 |
2.564 |
0.512 |
32.56 |
13.01 |
2.52 |
3.54 |
27.69 |
24.15 |
| 0.64 |
2.568 |
0.525 |
31.40 |
12.22 |
2.59 |
3.31 |
26.78 |
23.46 |
| 0.63 |
2.572 |
0.537 |
30.25 |
11.48 |
2.66 |
3.09 |
25.87 |
22.78 |
| 0.62 |
2.575 |
0.550 |
29.13 |
10.77 |
2.74 |
2.89 |
24.98 |
22.09 |
| 0.61 |
2.579 |
0.563 |
28.02 |
10.09 |
2.81 |
2.69 |
24.09 |
21.40 |
| 0.60 |
2.583 |
0.576 |
26.93 |
9.44 |
2.88 |
2.51 |
23.22 |
20.71 |
| 0.59 |
2.587 |
0.588 |
25.86 |
8.83 |
2.96 |
2.34 |
22.35 |
20.02 |
| 0.58 |
2.590 |
0.601 |
24.81 |
8.24 |
3.03 |
2.17 |
21.50 |
19.33 |
| 0.57 |
2.594 |
0.614 |
23.77 |
7.69 |
3.11 |
2.02 |
20.66 |
18.64 |
| 0.56 |
2.598 |
0.627 |
22.76 |
7.16 |
3.19 |
1.88 |
19.83 |
17.95 |
| 0.55 |
2.602 |
0.640 |
21.76 |
6.67 |
3.27 |
1.74 |
19.01 |
17.27 |
| 0.54 |
2.605 |
0.653 |
20.77 |
6.19 |
3.35 |
1.61 |
18.20 |
16.59 |
| 0.53 |
2.609 |
0.666 |
19.81 |
5.75 |
3.43 |
1.49 |
17.40 |
15.91 |
| 0.52 |
2.613 |
0.679 |
18.87 |
5.33 |
3.51 |
1.38 |
16.61 |
15.24 |
| 0.51 |
2.617 |
0.692 |
17.94 |
4.93 |
3.59 |
1.27 |
15.84 |
14.57 |
| 0.50 |
2.621 |
0.705 |
17.03 |
4.55 |
3.67 |
1.17 |
15.07 |
13.90 |
| 0.49 |
2.625 |
0.718 |
16.14 |
4.20 |
3.75 |
1.08 |
14.32 |
13.24 |
| 0.48 |
2.628 |
0.731 |
15.26 |
3.87 |
3.84 |
0.99 |
13.58 |
12.59 |
| 0.47 |
2.632 |
0.745 |
14.41 |
3.56 |
3.92 |
0.91 |
12.85 |
11.94 |
| 0.46 |
2.636 |
0.758 |
13.57 |
3.26 |
4.01 |
0.83 |
12.13 |
11.29 |
| 0.45 |
2.640 |
0.771 |
12.75 |
2.99 |
4.10 |
0.76 |
11.42 |
10.66 |
| 0.44 |
2.644 |
0.785 |
11.95 |
2.73 |
4.19 |
0.69 |
10.72 |
10.03 |
| 0.43 |
2.648 |
0.798 |
11.17 |
2.49 |
4.28 |
0.63 |
10.04 |
9.41 |
| 0.42 |
2.652 |
0.811 |
10.40 |
2.27 |
4.37 |
0.57 |
9.37 |
8.79 |
| 0.41 |
2.656 |
0.825 |
9.66 |
2.06 |
4.46 |
0.52 |
8.71 |
8.19 |
| 0.40 |
2.660 |
0.838 |
8.93 |
1.87 |
4.55 |
0.47 |
8.07 |
7.59 |
| 0.39 |
2.664 |
0.852 |
8.22 |
1.69 |
4.64 |
0.43 |
7.43 |
7.01 |
| 0.38 |
2.668 |
0.866 |
7.52 |
1.52 |
4.74 |
0.38 |
6.81 |
6.43 |
| 0.37 |
2.672 |
0.879 |
6.85 |
1.37 |
4.83 |
0.34 |
6.20 |
5.86 |
| 0.36 |
2.676 |
0.893 |
6.19 |
1.22 |
4.93 |
0.31 |
5.61 |
5.30 |
| 0.35 |
2.680 |
0.907 |
5.55 |
1.09 |
5.03 |
0.28 |
5.03 |
4.75 |
| 0.34 |
2.684 |
0.920 |
4.93 |
0.97 |
5.13 |
0.24 |
4.46 |
4.22 |
| 0.33 |
2.688 |
0.934 |
4.33 |
0.86 |
5.23 |
0.22 |
3.91 |
3.69 |
| 0.32 |
2.692 |
0.948 |
3.74 |
0.76 |
5.33 |
0.19 |
3.37 |
3.18 |
| 0.31 |
2.696 |
0.962 |
3.17 |
0.67 |
5.43 |
0.17 |
2.85 |
2.68 |
| 0.30 |
2.700 |
0.976 |
2.62 |
0.59 |
5.54 |
0.15 |
2.34 |
2.19 |
| 0.29 |
2.704 |
0.990 |
2.09 |
0.52 |
5.64 |
0.13 |
1.84 |
1.71 |
| 0.28 |
2.708 |
1.004 |
1.58 |
0.45 |
5.75 |
0.11 |
1.36 |
1.25 |
| 0.27 |
2.712 |
1.018 |
1.08 |
0.39 |
5.86 |
0.10 |
0.89 |
0.80 |
| 0.26 |
2.716 |
1.032 |
0.61 |
0.33 |
5.97 |
0.08 |
0.44 |
0.36 |
| 0.25 |
2.721 |
1.046 |
0.15 |
0.28 |
6.08 |
0.07 |
0.01 |
-0.07 |
| 0.24 |
2.725 |
1.060 |
-0.29 |
0.24 |
6.19 |
0.06 |
-0.41 |
-0.47 |
| 0.23 |
2.729 |
1.075 |
-0.72 |
0.20 |
6.30 |
0.05 |
-0.82 |
-0.87 |
| 0.22 |
2.733 |
1.089 |
-1.12 |
0.17 |
6.42 |
0.04 |
-1.21 |
-1.25 |
| 0.21 |
2.737 |
1.103 |
-1.51 |
0.14 |
6.53 |
0.04 |
-1.58 |
-1.62 |
| 0.20 |
2.742 |
1.117 |
-1.88 |
0.12 |
6.65 |
0.03 |
-1.94 |
-1.97 |
|