Stress Intensity Factors Under Mode III Loadings


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Abstract


This study presents a numerical investigation on the stress intensity factors (SIF) obtained under pure torsion loadings or mode III. ANSYS finite element analysis (FEA) was used to determine the SIFs along the crack front of surface cracks embedded in the solid circular bars. 20-node isoparametric singular elements were used around the crack tip by shifting the mid-side node ¼-position close to a crack tip. Different crack aspect ratio, a/b were used ranging between 0.0 to 1.2 and relative crack depth, a/D were ranged between 0.1 to 0.6. Mode I SIF, KI obtained under bending moment was used to validate the proposed model and it was assumed that this proposed model was validated for analyzing mode III problems. It was found that, the FII and FIII were dependent on the crack geometries and the behavior of crack growth were also dependent on a/b and a/D.
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Keywords


Stress Intensity Factors; Mode III; Surface Crack; Finite Element Analysis

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References


A. Carpinteri, R. Brighenti, S. Vantadori, Surface cracks in notched round bars under cyclic tension and bending, International Journal of Fatigue, Vol. 28, pp. 251-260, 2007.

A.E. Ismail, A.K. Ariffin, S. Abdullah, M.J. Ghazali, Elastic-plastic analysis of surface cracks in round bars under bending moments, International Review of Mechanical Engineering, Vol. 6, No. 3, pp. 602-606, 2012.

M.D. Fonte, , M.D. Freitas, Stress intensity factor for semi-elliptical surface cracks in round bars under bending and torsion, International Journal of Fatigue, Vol. 21, pp. 457-463, 1997.

A.E. Ismail, A.K. Ariffin, S. Abdullah, M.J. Ghazali, M. AbdulRazzaq, Finite Element Analysis on the Stress Intensity Factor under Combined Bending and Torsion Loading, Key Engineering Materials, Vol. 462-463, pp. 1325-1330, 2011.

X.B. Lin, R.A. Smith, Shape growth simulation of surface cracks in tension fatigue round bars, International Journal of Fatigue, Vol. 19, pp. 461-469, 1997.

A.R. Shahani, S.E. Habibi, Stress intensity factors in a hollow cylinder containing a circumferential semi-elliptical crack subjected to combined loading, International Journal of Fatigue, Vol. 29, pp. 128–140, 2007.

C.S. Shin, C.Q. Cai, Experimental and finite element analyses on stress intensity factors of an elliptical surface crack in a circular shaft under tension and bending, International Journal of Fracture, Vol. 129, pp. 239-264. 2004.

A.E. Ismail, A.K. Ariffin, S. Abdullah, M.J. Ghazali, Effect of crack faces opening mechanisms on the combined stress intensity factors under bending and torsion moment, International Review of Modeling and Simulations, Vol. 4, No. 6, pp. 3232-3238, 2011.


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