Shape optimization of stiffeners in stiffened composite plates with thermal residual stresses

Stability and natural frequencies of functionally graded stringer-reinforced panels

“…The most recent research on stiffened composite cylindrical shells can be found in the papers [16][17][18]. Studies of stiffened rectangular composite plates were published by Starnes et al [19], Sheinman and Frostig [20], Birman [21,22] and Wang et al [23,24]. These and other studies were conducted assuming that the plate is symmetrically laminated about its middle surface, i.e.…”

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

“…During weight minimization of pressure vessels, a lower limit may be imposed on the burst pressure. 973 566,790 or stiffness degradation, 947 micro-buckling, 687 crippling, 537 wrinkling, 107, 459,578,599,652,687,992 dimpling or indentation, 459,578,599,687 impact damage, 675,725,956 delamination, 191,481,725,892 fracture, 73,604 fatigue damage, 512 matrix damage, 725 fiber damage, 556,557 742,774 or volume. 5,52,232,370,517,587,669,706,707,856,925 In maximizing energy absorption capacity, a lower limit may be imposed on strain difference between successive failure modes.…”

“…In composite optimization studies, usually the material system or dimensions (size) were optimized. In some studies, shape 55,72,183,190,200,241,242,289,313,354,383,547,588,619,668–670,675,683,707,733,742,779,800,810,829,855,875,916,1000,1003 or topology 149,219,243,247,291,325,348,358,378,427,446,447,463,466,472,490,503,514,528,547,582,596,607,651,688,730,732,744,774,776,806,826,828…”