On Extension–Shearing coupled laminates

On Extension-Shearing Bending-Twisting coupled laminates

“…It complements two previous article on isolated mechanical Extension-Shearing coupling [2] and isolated mechanical Bending-Twisting coupling [3].…”

“…(9) [9] together with Extension-Shearing (or E-S) coupling, with the designation A F B 0 D S [2] and Bending-Twisting (or B-T) coupling, with designation A S B 0 D F [3]. These related mechanical coupling designations are summarized in Table 1.…”

Buckling strength improvements for Fibre Metal Laminates using thin-ply tailoring

“…Buckling response also differs between the FML due to the presence of BendingTwisting coupling in the FRP sub-laminates, which is known to reduce initial buckling strength and to induce mode changes in the post-buckling range [21]. The sequence in which the layers are stacked can be tailored in order to control stiffness coupling.…”

Optimization of Hybrid Laminates with Extension-Shear Coupling

“…For example, the bending-twisting-coupled wing structure can be designed by using composite extension-shearcoupled laminates [1] and the bending-twisting-coupled wind turbine blades structure can be designed by using composite extension-twisting-coupled laminates [2]. However, with the large-scale use of these bending-twisting coupling structures, the common glass fiber composites have difficulties in meeting the requirements of structural reliability.…”

“…Li and D. Li [2] have designed a kind of single-fiber composite laminates with immunity to hygrothermal shear distortion (HTSD) with only extension-shear-coupled effect-the A F B 0 D S laminates (refer to the nomenclature of references [1,2])-and the sequential quadratic programming (SQP) is used to optimize its coupled effect. However, we found that feasible solutions cannot be found when using the SQP algorithm to optimize the hybrid A F B 0 D S laminates with immunity to HTSD, for this algorithm cannot meet the strong constraints of hybrid laminates.…”