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Transient response of delaminated torsion stiff composite conical shell panels subjected to a low velocity oblique impact

Transient response of delaminated torsion stiff composite conical shell panels subjected to a low velocity oblique impact
Transient response of delaminated torsion stiff composite conical shell panels subjected to a low velocity oblique impact

This paper investigates the low velocity oblique impact responses of delaminated torsion stiff composite pretwisted shallow conical shells. An eight-node isoparametric quadratic plate bending element is employed in the finite element formulation incorporating rotary inertia and the effects of transverse shear deformation based on Mindlin's theory. The modified Hertzian contact law is employed to evaluate the impact parameters, and the time-dependent equations are solved using Newmark's time integration scheme. Parametric studies are carried out to investigate the effects of triggering parameters such as twist angle, and the oblique angle when subjected to low velocity impact by a solid sphere at the centre.

Contact force, Delamination, Finite element, Oblique impact, Torsion stiff
1759-3433
Dey, S.
dc2021be-621f-4404-a6dc-15789ea3bb77
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626
Dey, S.
dc2021be-621f-4404-a6dc-15789ea3bb77
Mukhopadhyay, T.
2ae18ab0-7477-40ac-ae22-76face7be475
Adhikari, S.
82960baf-916c-496e-aa85-fc7de09a1626

Dey, S., Mukhopadhyay, T. and Adhikari, S. (2014) Transient response of delaminated torsion stiff composite conical shell panels subjected to a low velocity oblique impact. Civil-Comp Proceedings, 106.

Record type: Article

Abstract

This paper investigates the low velocity oblique impact responses of delaminated torsion stiff composite pretwisted shallow conical shells. An eight-node isoparametric quadratic plate bending element is employed in the finite element formulation incorporating rotary inertia and the effects of transverse shear deformation based on Mindlin's theory. The modified Hertzian contact law is employed to evaluate the impact parameters, and the time-dependent equations are solved using Newmark's time integration scheme. Parametric studies are carried out to investigate the effects of triggering parameters such as twist angle, and the oblique angle when subjected to low velocity impact by a solid sphere at the centre.

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More information

Published date: 2014
Additional Information: Publisher Copyright: © Civil-Comp Press, 2014.
Keywords: Contact force, Delamination, Finite element, Oblique impact, Torsion stiff

Identifiers

Local EPrints ID: 483517
URI: http://eprints.soton.ac.uk/id/eprint/483517
ISSN: 1759-3433
PURE UUID: 4dac3f88-aaa6-40c8-b549-d1012c41862b

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Date deposited: 01 Nov 2023 17:51
Last modified: 07 Feb 2024 03:11

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Contributors

Author: S. Dey
Author: T. Mukhopadhyay
Author: S. Adhikari

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