Crack Contour Approximation for Life Assessment Based on 2D Weight Function

• Autorzy: Jankowiak A. , Jakubczak H.
• Konferencja: French-Polish Seminar on Mechanics ; 14. ; International Conference on Modelling and Simulation of the Friction Phenomena in the Physical and Technical Systems "FRICTION 2006" ; 4. (5.06.2006 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

In order to predict durability of structural components, the crack growth analysis is needed. Calculation of stress intensity factors (SIF) is necessary for that purpose. The method of crack growth analysis based on determining SIF using point-load weight functions 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

materials fatigue; fatigue crack growth; weight function; stress intensity factor

PL

zmęczenie materiałów; pękanie zmęczeniowe; trwałość zmęczeniowa; funkcja wagowa; współczynnik intensywności naprężeń

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2006
• Tom: Vol. 30, No. 2
• Strony: 54--62
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Jankowiak A.

autor

Jakubczak H.

• Warsaw University of Technology, Institute of Construction Machinery Engineering,

Bibliografia

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