Continuous curvilinear variable stiffness design for improved strength of a panel with a cutout

被引：17

作者：

Khan, Sadben ^{[1
]}

Nik, Mahdi Arian ^{[2
]}

Fayazbakhsh, Kazem ^{[1
]}

Fawaz, Zouheir ^{[1
]}

机构：

[1] Ryerson Univ, Aerosp Engn Dept, 350 Victoria St, Toronto, ON M5B 2K3, Canada

[2] McGill Univ, Dept Mech Engn, Montreal, PQ, Canada

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2022年 / 29卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Composite laminates; continuous curvilinear variable stiffness (CCVS); failure index (FI); finite element model (FEM); genetic algorithm (GA); OPTIMIZATION;

D O I：

10.1080/15376494.2020.1801914

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Continuous curvilinear variable stiffness (CCVS) is presented as a novel solution to improve the load carrying capacity of a fuselage panel with a cutout. The CCVS technique allows for the tow paths to curve around cutouts of arbitrary geometry with initial fiber angle and geometry as design inputs. An optimum CCVS design is generated using a genetic algorithm method coupled with a finite element model in NASTRAN and the results are compared with those obtained using a quasi-isotropic laminate. The optimized CCVS laminate is found to improve the load carrying capacity compared with the quasi-isotropic design by 57%.

引用

页码：975 / 983

页数：9

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