Stress Intensity Factor Calculation by Smoothed Finite Element Method

Ihor Rokach

doi:10.4028/www.scientific.net/SSP.250.163

Paper Titles

True and Nominal Stress during Low Cycle Fatigue Tests of Metals
p.139

Experimental and Numerical Modeling of the Phenomenon of Delamination Cracking in S235 Steel
p.145

Determination of Strain and Stress Fields in Laser Welded Joints by Means of the Aramis Video System
p.151

The Influence of Multiaxial Superimposed Static Mean Stress on High-Cycle Fatigue Life of Cu-ETP Copper
p.157

Stress Intensity Factor Calculation by Smoothed Finite Element Method
p.163

Fatigue Life of Welded Joints of High-Strength Structural Steel S960QL
p.169

Evaluation of Fatigue Failure of S960QL Steel in the Conditions of Plastic Strain
p.175

Fatigue Cracking of AA2519-Ti6Al4V Laminate Bonded by Explosion Welding
p.182

Tests of Fracture Toughness of Laser-Welded Joints Made of Duplex 2205 Steel
p.191

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Stress Intensity Factor Calculation by Smoothed Finite Element Method

Abstract:

Accuracy of stress intensity factor (SIF) determination by three types of smooth finite element method (namely, ES-FEM, NS-FEM and α-FEM) has been investigated. Two types of simple benchmark problems (uniaxial tension of the specimens with central and edge cracks) have been considered. SIF values were calculated by virtual crack extension and modified crack closure integral methods on almost uniform meshes. It has been shown that utilizing of ES-FEM and α-FEM significantly improves accuracy of the results compared with the traditional FEM.

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Periodical:

Solid State Phenomena (Volume 250)

Pages:

163-168

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.250.163

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Online since:

April 2016

Authors:

Ihor Rokach*

Keywords:

Fracture Mechanics, Smoothed Finite Element Method, Stress Intensity Factor

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References

[1] G.R. Liu, T. Nguyen-Thoi, Smoothed Finite Element Methods, CRC Press, (2010).

Google Scholar

[2] G.R. Liu, T. Nguyen-Thoi, K.Y. Lam, An edge-based smoothed finite element method (ES- FEM) for static, free and forced vibration analyses in solids, J. Sound Vib. 320 (2009) 1100-1130.

DOI: 10.1016/j.jsv.2008.08.027

Google Scholar

[3] G.R. Liu, T. Nguyen-Thoi, H. Nguyen-Xuan, K.Y. Lam, A node-based smoothed finite element method (NS-FEM) for upper bound solutions to solid mechanics problems, Comput. Struct. 87 (2009) 14-26.

DOI: 10.1016/j.compstruc.2008.09.003

Google Scholar

[4] G.R. Liu, T. Nguyen-Thoi, K.Y. Lam, A novel FEM by scaling the gradient of strains with factor α (αFEM), Comput. Mech. 43 (2009) 369-391.

DOI: 10.1007/s00466-008-0311-1

Google Scholar

[5] ADINA Theory and Modeling Guide, ADINA R&D Inc., Watertown, (2013).

Google Scholar

[6] A.R. Ingraffea, I.A. Wawrzynek, Finite Element Methods for Linear Elastic Fracture Mechanics, in: I. Milne, R.O. Ritchi, B. Karihaloo (Eds), Comprehensive Structural Integrity, vol. 3, Elsevier, 2003 1-88.

DOI: 10.1016/b0-08-043749-4/03007-x

Google Scholar