Imperfection sensitivity analysis of composite cylindrical shells using Koiter’s method

E. J. Barbero; A. Madeo; G. Zagari; R. Zinno; G. Zucco

doi:10.1080/15502287.2016.1276359

Imperfection sensitivity analysis of composite cylindrical shells using Koiter’s method

E. J. Barbero, A. Madeo, G. Zagari, R. Zinno, G. Zucco

Research output: Contribution to journal › Article › peer-review

Abstract

The novel methodology for imperfection sensitivity analysis, presented in Barbero et al. [1], is here applied for the evaluation of limit load of composite cylindrical shells. Koiter’s perturbation method is used to calculate the imperfection paths emanating from mode interaction bifurcations, and the Monte Carlo method is used to test a large number of modes and all possible interactions among them. The computational cost is low because of the efficiency of Koiter’s method. The demands of Koiter’s method for accurate evaluations of higher order derivatives of the potential energy are met by a mixed, corotational element.

Original language	English
Pages (from-to)	105-111
Number of pages	7
Journal	International Journal for Computational Methods in Engineering Science and Mechanics
Volume	18
Issue number	1
DOIs	https://doi.org/10.1080/15502287.2016.1276359
Publication status	Published - 2 Jan 2017
Externally published	Yes

Keywords

Composite cylinder
corotational kinematics
imperfection sensitivity
Koiter’s asymptotic approach
Monte Carlo

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10.1080/15502287.2016.1276359

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abstract = "The novel methodology for imperfection sensitivity analysis, presented in Barbero et al. [1], is here applied for the evaluation of limit load of composite cylindrical shells. Koiter{\textquoteright}s perturbation method is used to calculate the imperfection paths emanating from mode interaction bifurcations, and the Monte Carlo method is used to test a large number of modes and all possible interactions among them. The computational cost is low because of the efficiency of Koiter{\textquoteright}s method. The demands of Koiter{\textquoteright}s method for accurate evaluations of higher order derivatives of the potential energy are met by a mixed, corotational element.",

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AU - Barbero, E. J.

AU - Madeo, A.

AU - Zagari, G.

AU - Zinno, R.

AU - Zucco, G.

PY - 2017/1/2

Y1 - 2017/1/2

N2 - The novel methodology for imperfection sensitivity analysis, presented in Barbero et al. [1], is here applied for the evaluation of limit load of composite cylindrical shells. Koiter’s perturbation method is used to calculate the imperfection paths emanating from mode interaction bifurcations, and the Monte Carlo method is used to test a large number of modes and all possible interactions among them. The computational cost is low because of the efficiency of Koiter’s method. The demands of Koiter’s method for accurate evaluations of higher order derivatives of the potential energy are met by a mixed, corotational element.

AB - The novel methodology for imperfection sensitivity analysis, presented in Barbero et al. [1], is here applied for the evaluation of limit load of composite cylindrical shells. Koiter’s perturbation method is used to calculate the imperfection paths emanating from mode interaction bifurcations, and the Monte Carlo method is used to test a large number of modes and all possible interactions among them. The computational cost is low because of the efficiency of Koiter’s method. The demands of Koiter’s method for accurate evaluations of higher order derivatives of the potential energy are met by a mixed, corotational element.

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KW - corotational kinematics

KW - imperfection sensitivity

KW - Koiter’s asymptotic approach

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Imperfection sensitivity analysis of composite cylindrical shells using Koiter’s method

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