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Nonlinear modeling and coupled characteristic of composite structure with complex curvature

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Abstract

The paper presents an experimental verification for calculating coupled stiffness matrix in complex curvature composite structure. The results of the analytical procedure using Variational Asymptotic Beam Sectional Analysis also indicate that the calculation of 2-D, beam, cross-sectional properties can then be incorporated into and 1-D beam analysis expressed coupled stiffness matrix. This paper presents the 2-D cross-sectional analysis of active anisotropic beams. Comparison between the analytical and experimental results shows that the proposed analytical procedure can provide an accurate and efficient prediction of the both deflection and flexural stiffness of multilayer composite slender structure. Verified comparison results can be used to efficiently design accurate complex slender structure properties for preliminary design and optimization.

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Abbreviations

F:

internal force

H:

angular momentum

I:

moment of inertia per unit span

k:

initial curvature of composite structure

M:

internal moment

m:

external moment

P:

linear momentum

R, S, T:

cross-sectional flexibility coefficient

U:

The generalized strain energy per unit length

VABS:

Variational Asymptotic Beam Sectional Analysis

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Authors and Affiliations

  1. Dept. of Mechanical Design Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, South Korea, 305-764

    Jun Hwan Jang & Jae Hoon Kim

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  1. Jun Hwan Jang
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  2. Jae Hoon Kim
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Correspondence to Jae Hoon Kim.

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Jang, J.H., Kim, J.H. Nonlinear modeling and coupled characteristic of composite structure with complex curvature. Int. J. Precis. Eng. Manuf. 13, 2027–2033 (2012). https://doi.org/10.1007/s12541-012-0267-0

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  • DOI: https://doi.org/10.1007/s12541-012-0267-0

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