Stress Intensity Factor Solutions of Integral Stiffened Panels Based on an Improved Displacement Compatibility Method

Xiang Guo; Jian Zhong Liu; Yan Guang Zhao; De Guang Shang; Hu Liu

doi:10.4028/www.scientific.net/AMM.494-495.514

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495Stress Intensity Factor Solutions of Integral...

Stress Intensity Factor Solutions of Integral Stiffened Panels Based on an Improved Displacement Compatibility Method

Abstract:

Stiffnend panels are used to investigate the fracture behavior of the fuselage components within the framework of the damage tolerance analysis. Integral structure are gradually replace butilt-up structure in recent years. This paper presents an improved method based on displacement compatibility principle to calculate stress intensity factors. A finite element method based on intgral contour is introduced and used for verifying the solutions. Stress intensity factor solutions of built-up structure and integral structure were both calculated using these two methods. From the comparison, these two solutions are in good agreement both in built-up structure and integral structure.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

514-518

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.514

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Online since:

February 2014

Authors:

Xiang Guo*, Jian Zhong Liu, Yan Guang Zhao, De Guang Shang, Hu Liu

Keywords:

Displacement Compatibly Principle, Finite Element Method (FEM), Integral Stiffened Panels, Stress Intensity Factor (SIF)

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