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A Modified Technique for FEM Stress Analysis in Practical Problem

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Abstract:

Finite element method (FEM) is used widely for various structural problems. However, in general, it is difficult to guarantee the accuracy of results obtained by commercial software of FEM. In this paper, a practical finite element technique for calculating the stress concentration factors with high accuracy is proposed in consideration of physical meaning of stress concentration, and applied to a 2-dimentional stress problem.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

797-800

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.797

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Online since:

September 2007

Authors:

Kuniharu Ushijima, Hironobu Nisitani

Keywords:

2-d Problems, Elasticity, Finite Element Model (FEM), Stress Concentration Factor (SCF)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] H. Nisitani, D-H. Chen and A. Saimoto: Program on Versatile 2D Stress Analysis Based upon Body Force Method, Baifukan(1994) in Japanese.

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[2] H. Nisitani: A Measure of Stress Field of a Notch Corresponding to Stress Intensity Factor for a Crack, Trans. Of J.S.M. E, Vol. 48, No. 447, (1983), pp.1353-1359.

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[3] H. Nisitani: Linear Notch Mechanics as an Extension of Linear Fracture Mechanics, Role of Fracture Mechanics in Modern Technology, G. C. Sih, H. Nisitani and T. Ishihara(editors), (1987).

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