Strength evaluation of continuous curvilinear variable stiffness panels with circular cutouts under biaxial normal loading and off-design conditions

被引：6

作者：

Arian Nik, Mahdi ^{[1
]}

Fayazbakhsh, Kazem ^{[2
]}

Khan, Sadben ^{[2
]}

Fawaz, Zouheir ^{[2
]}

机构：

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

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

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2022年 / 29卷 / 25期

关键词：

Continuous curvilinear variable stiffness (CCVS) design; biaxial normal loading; off-design condition; optimization; composites; strength;

D O I：

10.1080/15376494.2021.1912441

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Continuous curvilinear variable stiffness (CCVS) design is explored to improve strength of panels with cutouts compared to straight-fiber laminates. All possible biaxial loading combinations and several force ratios are investigated. A total of 40 optimization problems (40 loading conditions) are solved using a surrogate-based genetic algorithm. CCVS designs provide at least 50% improvement in failure load for all loading conditions over a quasi-isotropic laminate, the baseline. Under off-design conditions, some CCVS designs outperform the baseline for all loading conditions by an average of 52% and 44%, respectively, for a plate with a small and a large hole.

引用

页码：3860 / 3870

页数：11

共 34 条

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