Kniha Bistable Composite Laminates and Morphing Wing Samer Tawfik

Bistable Composite Laminates and Morphing Wing

From Stability Characteristics to Morphing Application

Autor: Samer Tawfik
Jazyk: Angličtina
Väzba: Brožovaná
Vydavateľ: VDM Verlag
Dostupnosť: U vydavateľa na objednávku
Odosielame za 17-27 dní
77.28
Large out-of-plane deformations are developed in unsymmetric composite laminates at room temperature...

Informácie o knihe

Autor
Jazyk
Angličtina
Väzba
Kniha - Brožovaná
Vydalo
2010
Stránok
216
EAN
9783639251739
ISBN
3639251733
Enbook ID
06832686
Vydavateľ
Hmotnosť
322
Rozmery
152 x 229 x 12

Kompletný popis

Large out-of-plane deformations are developed in unsymmetric composite laminates at room temperature upon being cured flat in an autoclave. Common applications of composites utilize symmetric stacking sequence to avoid unpredicted warping. Meanwhile, bistable characteristics of unsymmetric composite laminates, if utilized, would allow adding more favorable properties beyond their enhanced mechanical properties and elastic coupling. Focusing on the bistable characteristics of unsymmetric cross- ply laminates two tasks are undertaken. First, key geometric parameters controlling bistable behavior are studied, i.e. spatial dimensions, thickness-to- sidelength ratio and planform shape. Second, actuation to trigger snap-though behavior is optimized utilizing piezoelectric actuators. A finite element methodology is developed using Abaqus commercial code and an experimental program is constructed to validate analytically obtained results. Finally, bistable composite laminates are used to propose a morphing wing design of an Uninhabited Aerial Vehicle (UAV). A preliminary aerodynamic analysis of the proposed UAV wing application is conducted.

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