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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.55 No.4
- 발행연도
- 2015.1
- 수록면
- 885 - 900 (16page)
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This paper introduces Romberg-Richardson’s method as one of the numerical integration tools for computation of stress intensity factor in a pre-cracked specimen subjected to a complex stress field across the crack faces. Also, the computation of stress intensity factor for various stress fields using existing three methods: average stress over interval method, piecewise linear stress method, piecewise quadratic method are modified by using Richardson extrapolation method. The direct integration method is used as reference for constant and linear stress distribution across the crack faces while Gauss-Chebyshev method is used as reference for nonlinear distribution of stress across the crack faces in order to obtain the stress intensity factor. It is found that modified methods (average stress over intervals-Richardson method, piecewise linear stress-Richardson method, piecewise quadratic-Richardson method) yield more accurate results after a few numbers of iterations than those obtained using these methods in their original form. Romberg-Richardson’s method is proven to be more efficient and accurate than Gauss-Chebyshev method for complex stress field.
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참고문헌 (38)
참고문헌 신청
Aaghaakouchak, A. A. / 1990 / Stress intensity factors for cracks in structures under different boundary conditions / Eng. Fract. Mech 37(5):1125~1137
Anderson, T.L. / 2006 / A closed-form method for integrating weight functions for partthrough cracks subject to Mode I loading / Eng. Fract. Mech 73:2153~2216
Bueckner, H. F. / 1970 / A novel principle for the computation of stress intensity factors / Zeitschrift für angewandte Mathematik und Mechanik 50(9):529~546
Das, S. / 2011 / Stress intensity factor of an edge crack in composite media / Int. J. Fract 172:201~207
Drucker, D.C. / 1970 / Plastic deformation in brittle and ductile fracture / Eng. Fract. Mech 1(4):577~602
Anderson, T.L. / 2006 / A closed-form method for integrating weight functions for partthrough cracks subject to Mode I loading / Eng. Fract. Mech 73:2153~2216
Bueckner, H. F. / 1970 / A novel principle for the computation of stress intensity factors / Zeitschrift für angewandte Mathematik und Mechanik 50(9):529~546
Das, S. / 2011 / Stress intensity factor of an edge crack in composite media / Int. J. Fract 172:201~207
Drucker, D.C. / 1970 / Plastic deformation in brittle and ductile fracture / Eng. Fract. Mech 1(4):577~602
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