Experimental examination of fatigue life of welded joint with stress concentration
Apstrakt
This paper presents results of experimental examinations of stress concentration influence to fatigue life of butt welded joints with K-groove, produced from the most frequently used structural steel S355J2+N. One group of experiments comprised examinations carried out on the K-groove specimens with stress concentrators of edged notch type. Specimens with short cracks (limited length of initial crack), defined on the basis of the experience from fracture mechanics by the three points bending examinations, have been examined according to standard for the determination of S-N curve, and aimed to determine fatigue strengths for different lengths of initial crack and Relationship between fatigue strength and crack length. Other group of experiments comprised examinations of specimens with edge notch, prepared in accordance with ASTM E 399 for three points bending, in order to establish regularity between crack growth and range of exerted stress intensity factor aimed to determine resistanc...e of welded joint to initial crack growth, namely fatigue threshold (ΔKth).
Ključne reči:
Welded joint / Stress concentration / Fatigue threshold / Fatigue strength / Crack / Crack growth rateIzvor:
Frattura ed Integrita Strutturale, 2016, 10, 36, 27-35Izdavač:
- Gruppo Italiano Frattura
Institucija/grupa
Institut za ispitivanje materijalaTY - JOUR AU - Arsić, Miodrag AU - Savić, Zoran AU - Sedmak, Aleksandar AU - Bošnjak, Srđan AU - Sedmak, Simon PY - 2016 UR - http://rims.institutims.rs/handle/123456789/296 AB - This paper presents results of experimental examinations of stress concentration influence to fatigue life of butt welded joints with K-groove, produced from the most frequently used structural steel S355J2+N. One group of experiments comprised examinations carried out on the K-groove specimens with stress concentrators of edged notch type. Specimens with short cracks (limited length of initial crack), defined on the basis of the experience from fracture mechanics by the three points bending examinations, have been examined according to standard for the determination of S-N curve, and aimed to determine fatigue strengths for different lengths of initial crack and Relationship between fatigue strength and crack length. Other group of experiments comprised examinations of specimens with edge notch, prepared in accordance with ASTM E 399 for three points bending, in order to establish regularity between crack growth and range of exerted stress intensity factor aimed to determine resistance of welded joint to initial crack growth, namely fatigue threshold (ΔKth). PB - Gruppo Italiano Frattura T2 - Frattura ed Integrita Strutturale T1 - Experimental examination of fatigue life of welded joint with stress concentration EP - 35 IS - 36 SP - 27 VL - 10 DO - 10.3221/IGF-ESIS.36.03 ER -
@article{ author = "Arsić, Miodrag and Savić, Zoran and Sedmak, Aleksandar and Bošnjak, Srđan and Sedmak, Simon", year = "2016", abstract = "This paper presents results of experimental examinations of stress concentration influence to fatigue life of butt welded joints with K-groove, produced from the most frequently used structural steel S355J2+N. One group of experiments comprised examinations carried out on the K-groove specimens with stress concentrators of edged notch type. Specimens with short cracks (limited length of initial crack), defined on the basis of the experience from fracture mechanics by the three points bending examinations, have been examined according to standard for the determination of S-N curve, and aimed to determine fatigue strengths for different lengths of initial crack and Relationship between fatigue strength and crack length. Other group of experiments comprised examinations of specimens with edge notch, prepared in accordance with ASTM E 399 for three points bending, in order to establish regularity between crack growth and range of exerted stress intensity factor aimed to determine resistance of welded joint to initial crack growth, namely fatigue threshold (ΔKth).", publisher = "Gruppo Italiano Frattura", journal = "Frattura ed Integrita Strutturale", title = "Experimental examination of fatigue life of welded joint with stress concentration", pages = "35-27", number = "36", volume = "10", doi = "10.3221/IGF-ESIS.36.03" }
Arsić, M., Savić, Z., Sedmak, A., Bošnjak, S.,& Sedmak, S.. (2016). Experimental examination of fatigue life of welded joint with stress concentration. in Frattura ed Integrita Strutturale Gruppo Italiano Frattura., 10(36), 27-35. https://doi.org/10.3221/IGF-ESIS.36.03
Arsić M, Savić Z, Sedmak A, Bošnjak S, Sedmak S. Experimental examination of fatigue life of welded joint with stress concentration. in Frattura ed Integrita Strutturale. 2016;10(36):27-35. doi:10.3221/IGF-ESIS.36.03 .
Arsić, Miodrag, Savić, Zoran, Sedmak, Aleksandar, Bošnjak, Srđan, Sedmak, Simon, "Experimental examination of fatigue life of welded joint with stress concentration" in Frattura ed Integrita Strutturale, 10, no. 36 (2016):27-35, https://doi.org/10.3221/IGF-ESIS.36.03 . .