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Rotational and ply-level uncertainty in response of composite shallow conical shells

Rotational and ply-level uncertainty in response of composite shallow conical shells
Rotational and ply-level uncertainty in response of composite shallow conical shells

This paper presents the quantification of rotational and ply level uncertainty of random natural frequency for laminated composite conical shells by using surrogate modeling approach. The stochastic eigenvalue problem is solved by using QR iteration algorithm. Sensitivity analysis is carried out to address the influence of different input parameters on the output natural frequencies. The sampling size and computational cost is reduced by employing the present approach compared to direct Monte Carlo simulation. The stochastic mode shapes are also depicted for a typical laminate configuration. Statistical analysis is presented to illustrate the results and its performance.

Central composite design method, Natural frequency, Rotational uncertainty, Sensitivity analysis, Shallow conical shell, Stochastic mode shapes
0263-8223
594-605
Dey, S.
a03fefa9-b130-4971-a122-3a8aaa047a19
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Haddad Khodaparast, H.
dee3fcb4-accc-4bc0-944f-7c773efe616b
Kerfriden, P.
8c90b50a-d080-402a-afee-b0c61a3ac0d0
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626
Dey, S.
a03fefa9-b130-4971-a122-3a8aaa047a19
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Haddad Khodaparast, H.
dee3fcb4-accc-4bc0-944f-7c773efe616b
Kerfriden, P.
8c90b50a-d080-402a-afee-b0c61a3ac0d0
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626

Dey, S., Mukhopadhyay, T., Haddad Khodaparast, H., Kerfriden, P. and Adhikari, S. (2015) Rotational and ply-level uncertainty in response of composite shallow conical shells. Composite Structures, 131, 594-605. (doi:10.1016/j.compstruct.2015.06.011).

Record type: Article

Abstract

This paper presents the quantification of rotational and ply level uncertainty of random natural frequency for laminated composite conical shells by using surrogate modeling approach. The stochastic eigenvalue problem is solved by using QR iteration algorithm. Sensitivity analysis is carried out to address the influence of different input parameters on the output natural frequencies. The sampling size and computational cost is reduced by employing the present approach compared to direct Monte Carlo simulation. The stochastic mode shapes are also depicted for a typical laminate configuration. Statistical analysis is presented to illustrate the results and its performance.

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More information

Published date: 1 November 2015
Additional Information: Publisher Copyright: © 2015 Elsevier Ltd.
Keywords: Central composite design method, Natural frequency, Rotational uncertainty, Sensitivity analysis, Shallow conical shell, Stochastic mode shapes

Identifiers

Local EPrints ID: 483522
URI: http://eprints.soton.ac.uk/id/eprint/483522
ISSN: 0263-8223
PURE UUID: e7dbbb60-49c3-44b0-9d33-76543b364752

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Date deposited: 01 Nov 2023 17:51
Last modified: 18 Mar 2024 04:10

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Contributors

Author: S. Dey
Author: T. Mukhopadhyay
Author: H. Haddad Khodaparast
Author: P. Kerfriden
Author: S. Adhikari

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