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Modified Bernoulli-Euler Laminate Beam Theory Using Total Effective Moment in LIPCA

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Abstract:

The applicable bending moment equation of LIPCA is necessary even though the fiber layer ply orientation is changed. The aim of this research is to evaluate the relationship between the total effective moment (ME) and Bernoulli-Euler bending moment (M) when the ply orientations of unidirectional CFRP, which is one of the various laminate configurations in LIPCA, are changed. Since the related previous equation between the performance stroke range (h) and the radius of curvature (ρ) was just applicable to the CFRP ply orientation [0], it will be modified using these results. The related modified equation, which has nothing to do with the various CFRP ply orientation, is also suggested and compared with the previous equation.

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Periodical:

Key Engineering Materials (Volumes 334-335)

Pages:

413-416

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.334-335.413

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Online since:

March 2007

Authors:

Cheol Woong Kim, Sang Heon Lee, Kee Joo Kim

Keywords:

Bernoulli-Euler Laminate Beam Theory, CFRP Ply Orientations, Fiber Ply Orientation Factor, LIPCA, Performance Stroke Range, Total Effective Moment

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] C.W. Kim and K.J. Yoon: Transactions of the KSME, A, Vol. 30, No. 2 (2006) p.120~127.

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[2] K.J. Yoon, K.H. Park, S.K. Lee, N.S. Goo and H.C. Park: Smart Materials and Structures, No. 13 (2004), p.459~467.

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[3] Ronald F. Gibson: Principles of Composite Material Mechanics, McGraw Hill (1994), p.190~269.

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