Incorporating industrial constraints for multiobjective optimization of composite laminates using a GA

Abstract

-In this article, complexities related to the multicriteria (multiobjective) optimization of laminated composite structures subjected to technological constraints will be presented. So, various technological constraints will be presented and a strategy of handling each constraint (in order to use the multi-objective optimization tools based on genetic algorithms) will be also introduced.

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

“…specific limits may be set for the values of Poisson's ratio, 431, 757 density, 194,431,977 941,963,974,983,984 An upper bound may be set to the difference between fiber angles of adjacent plies to reduce edge delaminations. 335,473,692,842,883,963,983,984 A minimum number of plies may be required for each chosen direction to avoid domination of matrix properties in one of these directions. 883 Manufacturing constraints may be imposed.…”

“…335,473,692,842,883,963,983,984 A minimum number of plies may be required for each chosen direction to avoid domination of matrix properties in one of these directions. 883 Manufacturing constraints may be imposed. 71 737 volume fraction of a constituent material.…”

“…268,303,388,559,606,645,646,738,739,807,808,940 The number of contiguous plies with the same fiber orientation may be limited to prevent matrix damage propagation and thus avoid large matrix cracks. 198,226,248,249,254,255,286,328,335,430,473,477,494,495,508,555,559,600,612,620,645,646,659,678,679,692,716,727,731,794,795,836,842,843,852,859,861,867,868,881,883,896–898,912,926,930,932,941,963,974,…”

“…198,226,248,249,254,255,286,328,335,430,473,477,494,495,508,555,559,600,612,620,645,646,659,678,679,692,716,727,731,794,795,836,842,843,852,859,861,867,868,881,883,896–898,912,926,930,932,941,963,974,983,984 An upper bound may be set to the difference between fiber angles of adjacent plies to reduce edge delaminations. 335,473,692,842,883,963,983,984 A minimum number of plies may be required for each chosen direction to avoid domination of matrix properties in one of these directions. 883 Manufac...…”

“…335,473,692,842,883,963,983,984 A minimum number of plies may be required for each chosen direction to avoid domination of matrix properties in one of these directions. 883 Manufacturing constraints may be imposed. 71,205,363,412,413,419,423,441,448,453,540,543,632,724,734,738,775,818,822,836,865,882,885,897,912,922,981,990 To facilitate fabrication of the structure, continuity of fiber orientations between different panels or subdomains 599,611,655,797,811,861,884,921,962 may be enforced.…”