Numerically predicted J-integral as a measure of crack driving force for steels 1.7147 and 1.4762

• Autorzy: Vukelic G. , Brnic J.

Identyfikatory

DOI

10.15632/jtam-pl.55.2.659

• Języki publikacji: EN

Abstrakty

EN

Fracture behavior of two types of steel (1.4762 and 1.7147) is compared based on their numerically obtained J-integral values. The J-integral are chosen to quantify the crack driving force using the finite element (FE) stress analysis applied to single-edge notched bend (SENB) and compact tensile (CT) type fracture specimens. The resulting J-values are plotted for growing crack length (∆a – crack length extension) at different a/W ratios (a/W – relative crack length; 0.25, 0.5, 0.75). Slightly higher resulting values of the J-integral for 1.4762 than 1.7147 can be noticed. Also, higher a/W ratios correspond to lower J-integral values of the materials and vice versa. J-integral values obtained by using the FE model of the CT specimen give somewhat conservative results when compared with those obtained by the FE model of the SENB specimen.

Słowa kluczowe

EN

crack; steel 1.7147; steel 1.4762; FE analysis

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 2
• Strony: 659--666
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Vukelic G.

• University of Rijeka, Faculty of Maritime Studies Rijeka, Croatia

autor

Brnic J.

• University of Rijeka, Faculty of Engineering, Rijeka, Croatia

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)