Influence of crack contour approximation method on calculated fatigue life in semi-elliptical craks growth analysis

• Autorzy: Jankowiak A. , Jakubczak H.
• Konferencja: 18; Polish-German Seminar; Development Trends in Design of Machines and Vehicles; 2006
• Języki publikacji: PL

Abstrakty

EN

Prediction of residual life of structural components spent on the stable crack growth needs a crack growth analysis starting from an initial crack-like flaw. The method of crack growth analysis based on stress intensity factors calculated using point-load weight function is presented in the paper. Especially the influence of the crack contour approximation method on the calculated fatigue life is discussed. Examples of semi-elliptical surface crack growth analysis under arbitrary mode I stress fields are presented in the paper.

Słowa kluczowe

EN

defects of cracks; fatigue life; approximation method

• Wydawca: Instytut Pojazdów Politechniki Warszawskiej
• Czasopismo: Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska
• Rocznik: 2006
• Tom: z. 4/63
• Strony: 87--92
• Opis fizyczny: Bibliogr. 5 poz., schem., wykr.

Twórcy

autor

Jankowiak A.

autor

Jakubczak H.

• Warsaw University of Technology Institute of Construction Machinery Engineering

Bibliografia

• [1] Glinka, G., Reinhardt, W., Calculation of Stress Intensity Factors for Cracks of Complex Geometry and Subjected to Arbitrary Nonlinear Stress Fields. Fatigue and Fracture Mechanics, Vol. 31, ASTM STP 1389, West Conshohocken, PA, 2000, ss. 348-370.
• [2] Jakubczak, H., Glinka, G. Program FALPR for crack growth analysis. 1995-2005
• [3] Jankowiak, A., Jakubczak, H., Crack Growth Analysis Using 2D Weight Functions. XXI Sympozjum Zmęczenia Materiałów i Konstrukcji, Pieczyska, May, 2006 (In Polish).
• [4] Oore, M., Burns, D. J., Estimation of Stress Intensity Factors for Embedded Irregular Cracks Subjected to Arbitrary Normal Stress Fields, Journal of Pressure Vessel Technology, ASME, Vol. 102, 1980, ss. 201-211.
• [5] Wu, Z., Jakubczak, H., Glinka, G., Molski, K., Nilsson L., Determination of Stress Intensity Factors for Cracks in Complex Stress Fields, The Archive of Mechanical Engineering, Vol. L, Nr. 1, 2003, ss. 41-67.