Improvement of Cylinder Buckling Knockdown Factor through Imperfection Sensitivity

Author:

Ismail Mohd Shahrom1,bin Baharudin B.T. Hang Tuah2,Talib Zalaida1,Yahya Shariza Azwin1

Affiliation:

1. Universiti of Putra Malaysia

2. Universiti Putra Malaysia

Abstract

This paper encompasses the work from numerical model by investigating the compression response of CFRP composite cylinder shells. The aim of this paper is to improve the reliability of NASA SP-8007 design guideline. The cylinder geometrical imperfections were tested through numerical modelling and validate with the experiment results. Good results comparison has been obtained through the work with small amount of errors. The cylinder shell load carrying capacity has been improved by average of 56% through imperfection study. This work builds confidence in the future use of non-linear finite element for the design of composite cylinder subjected to axial compression load.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference7 articles.

1. R. Degenhardt et al, Composite Structures, Vol. 92 (8), (2010), p.1939–(1946).

2. M. S Ismail et al., Advanced Materials Research, Vol. 701, (2013), p.425.

3. M. W Hilburger and W. T Haynie, AIAA, (2013), pp.232-7.

4. C. Bisagni, AIAA, XXI ICAS Congress, (1998).

5. V. I. Weingarten, P. Seide and J. P. Peterson, NASA Space Vehicle Design Criteria - Structures, 1965 (revised 1968).

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