Effect of Longitudinal Unstiffened Cut-Outs on Buckling Behavior of Metal-FRP Hybrid Airframe Shell

Vamsi Krishna, G. and Narayanamurthy, V. and Viswanath, C. (2022) Effect of Longitudinal Unstiffened Cut-Outs on Buckling Behavior of Metal-FRP Hybrid Airframe Shell. In: Virtual Seminar on Applied Mechanics, VSAM 2021, 28 May 2021 through 29 May 2021, Virtual, Online.

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Cutouts are an integral part of airframe shells. Understanding the effect of cutouts on the buckling behavior of FRP stiffened airframe shells is an essential part of designing these hybrid shell structures. This paper investigated the effect of centrally located unstiffened longitudinal rectangular cutouts with varying size on the buckling behavior of an elastically buckling hybrid airframe shell of a high radius to thickness ratio (r/t) and equipped with end bulkheads. The effect of cutouts on shells is a function of initial geometric imperfections, predominantly in elastically buckling shells. So, the above investigations are carried out both for shells with very small and relatively large imperfection magnitudes. It is brought out that pre-buckling deformations and stress concentration play a dominant role in deciding the buckling pattern and buckling load of shell structures with cutouts. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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IITH Creators:
IITH CreatorsORCiD
Viswanath, C.https://orcid.org/0000-0001-9038-6274
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Elastic buckling; Metal-FRP hybrid shell structures; Unstiffened cutouts
Subjects: Physics > Mechanical and aerospace
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 20 Jul 2022 12:42
Last Modified: 20 Jul 2022 12:42
URI: http://raiith.iith.ac.in/id/eprint/9823
Publisher URL: http://doi.org/10.1007/978-981-16-9539-1_30
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