Size and Topology Optimization for Trusses with Discrete Design Variables by Improved Firefly Algorithm

Table 7

The available cross-section areas.

Number	mm^2
(1)	71.613
(2)	90.968
(3)	126.451
(4)	161.290
(5)	198.064
(6)	252.258
(7)	285.161
(8)	363.225
(9)	388.386
(10)	494.193
(11)	506.451
(12)	641.289
(13)	645.160
(14)	729.031
(15)	792.256
(16)	816.773
(17)	939.998
(18)	1008.385
(19)	1045.159
(20)	1161.288
(21)	1283.868
(22)	1374.191
(23)	1535.481
(24)	1690.319
(25)	1696.771
(26)	1858.061
(27)	1890.319
(28)	1993.544
(29)	2180.641
(30)	2238.705
(31)	2290.318
(32)	2341.931
(33)	2477.414
(34)	2496.769
(35)	2503.221
(36)	2696.769
(37)	2722.575
(38)	2896.768
(39)	2961.284
(40)	3096.768
(41)	3206.445
(42)	3303.219
(43)	3703.218
(44)	4658.055
(45)	5141.925
(46)	5503.215
(47)	5999.988
(48)	6999.986
(49)	7419.430
(50)	8709.660
(51)	8967.724
(52)	9161.272
(53)	9999.980
(54)	10322.560
(55)	10903.204
(56)	12129.008
(57)	12838.684
(58)	14193.520
(59)	14774.164
(60)	15806.420
(61)	17096.740
(62)	18064.480
(63)	19354.800
(64)	21612.860