Effect of ring notch radius on the decohesion mode in AlSi alloys

• Autorzy: Piekło J. , Maj M.
• Języki publikacji: EN

Abstrakty

EN

The article discusses the effect of the, determined by tensile test, non-linear characteristics of AlSi alloys on the value of the shape factor k for the three different sizes of the radius of the ring notch made on round specimens. Applying a numerical solution, the changes of stress in the notch plane were determined in function of the notch configuration and the value of instantaneous load. Tensile tests were carried out on round bars with ring notches. The appearance of fractures was examined on scanning images. Differences in notch effect observed in the linear-elastic and elastic-plastic model of material hardening in a non-linear mode were described.

Słowa kluczowe

EN

docohesion; elastic-plastic model; strain; nominal-stress; HMH hypothesis

PL

model sprężysty; model plastyczny; odkształcenie; naprężenie nominalne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 2
• Strony: 25--28
• Opis fizyczny: Bibliogr. 5 poz., rys., tab., wykr.

Twórcy

autor

Piekło J.

autor

Maj M.

• Faculty of Foundry Engineering, AGH University of Science and Technology , Reymonta 23 str., 30-059 Kraków, Poland,

Bibliografia

• [1] Kocańda S.:, Szala J. Basic of Fatigue Calculations, PWN, Warszawa 1985 (in Polish).
• [2] Gołaski L.: Elements of Experimental Fracture mechanics, Politechnika Świętokrzyska, Kielce 1992(in Polish).
• [3] Teirlinck D., Zok F., Embury J., Ashby M.: Fracture Mechanism Maps in Stress Space , Acta Metallurgica, Vol.36, No. 5, 1988, pp. 1213-1228.
• [4] Argon S., Im J., Safoglu R.: Cavity Formation from Inclusions in Ductile Fracture, Metallurgical Transactions, Vol. 6A, 1975, pp. 825-837.
• [5] Kown D., Asaro R.: A Study of Void Nucleation, Growth and Coalescence in Spheroidized 1518 Steel, Metallurgical Transactions, Vol. 21A, 1990, pp. 117-134.