3D fracture mechanics investigation on surface fatigue crack propagation

• Autorzy: Shen H. , Guo W. , Lu G.
• Języki publikacji: EN

Abstrakty

EN

Surface fatigue crack propagation is the typical failure mode of engineering structures. In this study the experiment on surface fatigue crack propagation in 15 MnVN steel plate is carried out and the crack-shape and propagation life are obtained. With the concept of "equivalent thickness" brought into the latest 3D (three dimensional) fracture mechanics theory, one closure model applicable to 3D fatigue crack is put forward. By using the above 3D crack-closure model, the shape and propagation life of surface fatigue crack in 15 MnVN plates are predicted. The simulative results show that the 3D fracture mechanics based closure model for 3D fatigue crack is effective.

Słowa kluczowe

EN

surface fatigue crack; 3D fracture mechanics; crack closure; equivalent thickness; fatigue crack propagation

PL

zmęczenie powierzchniowe; mechanika pękania; propagacja pęknięć zmęczeniowych

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2009
• Tom: Vol. 14, no 4
• Strony: 1127--1138
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Shen H.

autor

Guo W.

autor

Lu G.

• School of Aeronautics and Astronautics Nanjing University of Aeronautics & Astronautics Nanjing, 210016, CHINA,

Bibliografia

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