Experimental analysis and modelling of fatigue crack initiation mechanisms

• Autorzy: Ustrzycka A. , Mróz Z. , Kowalewski Z. L.

Identyfikatory

DOI

10.15632/jtam-pl.55.4.1443

• Języki publikacji: EN

Abstrakty

EN

The present work is devoted to simulation of fatigue crack initiation for cyclic loading within the nominal elastic regime. It is assumed that damage growth occurs due to action of mean stress and its fluctuations induced by crystalline grain inhomogeneity and the free boundary effect. The macrocrack initiation corresponds to a critical value of accumulated damage. The modelling of damage growth is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using coherent laser light.

Słowa kluczowe

EN

fatigue crack initiation; damage evolution; optical methods

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 4
• Strony: 1443--1448
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Ustrzycka A.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

autor

Mróz Z.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

autor

Kowalewski Z. L.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

Bibliografia

• 1. Ferretti D., Rossi M., Royer-Carfagni G., 2011, An ESPI experimental study on the phenomenon of fracture in glass. Is it brittle or plastic? Journal of the Mechanics and Physics of Solids, 59, 1338-1354
• 2. Kowalewski Z.L., Mackiewicz S., Szelążek J., 2008, Evaluation of damage in steels subjected to exploitation loading – destructive and non-destructive methods, International Journal of Modern Physics B, 22, 5533-5538
• 3. Mróz Z., Seweryn A., Tomczyk A., 2004, Fatigue crack growth prediction accounting for the damage zone, Fatigue and Fracture of Engineering Materials and Structures, 28, 61-71
• 4. Sangid M.D., 2013, The physics of fatigue crack initiation, International Journal of Fatigue, 57, 58-72
• 5. Vasco-Olmo J.M., Daz F.A., Patterson E.A., 2016, Experimental evaluation of shielding effect on growing fatigue cracks under overloads using ESPI, International Journal of Fatigue, 83, 117-126

Uwagi

PL

Short Research Communication