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http://dx.doi.org/10.5139/JKSAS.2002.30.4.001

Critical Angle Analysis of Elliptical Corner Cracks in Mechanical Joints by Weight Function Method and Finite Element Analysis  

Heo, Sung-Pil (성균관대학교 대학원 기계공학과)
Yang, Won-Ho (성균관대학교 기계공학부)
Ko, Myung-Hoon (대림대학 산업기술경영과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.4, 2002 , pp. 1-9 More about this Journal
Abstract
There is the high possibility of crack initiation from mechanical joints, which are widely used in aircraft fuselages, due to the development of stress concentration and contact pressure. In this paper, the mixed-mode stress intensity factors at the surface and deepest points of an inclined quarter elliptical corner crack in mechanical joints are analyzed by the weight function method. The coefficients included in the weight function are obtained by finite element analyses for reference loadings. Critical angle at which mode I stress intensity factor becomes maximum is determined by analyzing the variation of stress intensity factors along incline angle of crack and the effects of the amount of clearance and crack depth on the critical angle are investigated.
Keywords
Weight Function Method; Finite Element Analysis; Elliptical Corner Crack; Mechanical Joint; Critical Angle; Clearance; Contact;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 X. Wang and S. B. Lambert, "Stress Intensity Factors for Low Aspect Ratio Semi-elliptical Surface Cracks in Finite-thickness Plates Subjected to Nonuniform Stresses", Engng. Fracture Mechanics, Vol. 51, No.4, pp. 517-532, 1995.   DOI   ScienceOn
2 G. Shen and G. Glinka, "Weight Functions for a Surface Semi-elliptical Crack in a Finite Thickness Plate", Theort. Appl. Fracture Mechanics, Vol. 15, pp. 247-255, 1991.   DOI   ScienceOn
3 A. Kiciak, G. Glinka, M. Eman and M. Shiratori, "Weight Functions and StressIntensity Factors for Comer Quarter-elliptical Crack in Finite Thickness Plate Subjected to In-plane Loading", Engng. Fracture Mechanics,Vol. 60, No.2, pp. 221-238, 1998   DOI   ScienceOn
4 S. H. Ju, "Stress Intensity Factors forCracks in Bolted Joints", Int J. of Fracture, Vol.84, pp. 129-141, 1997.   DOI
5 S. A. Fawaz, "Application of the Virtual Crack Closure Technique to Calculate Stress Intensity Factors for Through Cracks with an Elliptical Crack Front", Engng. Fracture Mechanics, Vol. 59, No.3, pp. 327-342, 1998.   DOI   ScienceOn
6 X. B. Lin and R. A. Smith, "Stress Intensity Factors for Comer Cracks Emanating from Fastener Holes under Tension", Engng. Fracture Mechanics, Vol. 62, pp. 535-553, 1999.   DOI   ScienceOn
7 허성필, 양원호, 김철, “가중함수법에 의한 기계적 체결부에 존재하는 타원형 모서리균열의 혼합모드 응력확대계수”, 대한기계학회논문집 A권 제25권, 제4호, pp. 703-713, 2001.   과학기술학회마을
8 T. Fett, D. Munz and M. Tilscher, "Weight Functions for Sub-Interface Cracks", Int. J. of Solids and Structures, Vol. 34, No.3, pp.393-400, 1997.   DOI   ScienceOn