Abstract
Low cycle fatigue strengths of corner welded joints with single bevel groove welding were studied. Low cycle fatigue tests were performed with three types of specimens which have different sizes of weld root face. The test results indicated that the low cycle fatigue strength of the corner welded joints strongly depends on the weld root size. Then, the fatigue strength of the corner joints was evaluated based on the effective notch strain at the weld root tip which was calculated by elasto-plastic finite element analyses. A unique relationship between the effective notch strain and the fatigue life of the joint was observed regardless of the weld root size. Therefore, it was revealed that the effective notch strain approach is applicable to evaluate the low cycle fatigue strength of the corner welded joints.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Coffin, L. F. Jr. (1954). “A study of the effects of cyclic thermal stresses on a ductile metal.” Trans. ASME, 76, pp. 931–950.
Dražan, K., Nenad, G., and Pejo, K. (2002). “Fracture mechanics approach to heterogeneous welded structures.” International Conference Research and Development in Mechanical Industry, 1, pp. 237–240.
Fricke, W. (2008). “Guideline for the fatigue assessment by notch stress analysis for welded structures.” IIW Documentation, XIII-2240-08/XV-1289-08.
Ge, H., Usami, T., and Toya, K. (1994). “A study on strength and deformation capacity of concrete-filled steel columns under cyclic loading.” Journal of Structural Engineering, JSCE, 40A, pp. 163–176 (in Japanese).
Gunaraj, V. and Murugan, N. (2002). “Prediction of heataffected zone characteristics in submerged arc welding of structural steel pipes.” Welding Research Supplement, pp. 94–98.
Hanji, T., Tateishi, K., Minami, K., and Kitoh, K. (2006). “Extremely low cycle fatigue assessment for welded joints based on peak strain approach.” Journal of Structural Mechanics and Earthquake Engineering, JSCE, 808(I-74), pp. 137–145 (in Japanese).
Hanji, T., Saiprasertkit, K., and Miki, C. (2011). “Low- and high-cycle fatigue behavior of load-carrying cruciform joints with incomplete penetration and strength undermatch.” International Journal of Steel Structure, 11(4), pp. 409–425.
Hobbacher, A. (2008). “Recommendations for fatigue design of welded joints and components.” IIW Documentation, XIII-1539-96/XV-845-96.
Iida, K. (1968). “Various fundamental problems on low cycle fatigue.” Journal of the Japan welding society, 37(6), pp. 542–559 (in Japanese).
Iida, K. (1973). “Notch effects in low cycle fatigue of steels.” Selected papers from the journal of the Society of Naval Architects of Japan, 11, pp. 117–134.
Iida, K. and Fujii, E. (1977). “Low cycle fatigue strength of steels and welds in relation to static tensile properties.” Proc. 4th International Conference on Fracture, 2, pp. 19–24.
Iura, M., Orino, A., and Isizawa, T. (2002). “Elasto-plastic behavior of concrete-filled steel tubular columns.” Journal of Structural Mechanics and Earthquake Engineering, JSCE, 696(I-58), pp. 285–298 (in Japanese).
JRA (2012). Specification for high way bridge. Japan Road Association (in Japanese).
Mansion, S. S. (1953). “Behavior of materials under conditions of thermal stress.” NASA Technical Note, 2933.
Miki, C., Nishimura, R., Tanabe, H., and Nishikawa, K. (1981). “Study on estimation of fatigue strengths of notched steel members.” Proc. JSCE, 316, pp. 153–168.
Nakagomi, T. and Lee, K. (1995). “Experimental study on fatigue characteristic of SM490 by repeated load.” Journal of Structural and Construction Engineering, AIJ, 469, pp. 127–136 (in Japanese).
Nihei, M., Konno, T., and Iida, K. (1984). “Prediction of fatigue strength under bending by use of hysteresis energy concept.” Journal of the Society of Naval Architects of Japan, 184, pp. 458–468.
Nishimura, T. and Miki, C. (1978). “Strain controlled low cycle fatigue behavior of structural steels.” Proc. JSCE, 279, pp. 29–44 (in Japanese).
Park, J. E., Hanji, T., and Tateishi, K. (2013). “Low cycle fatigue behavior of concrete filled steel bridge piers with box section.” Proc. JSSC, 21, pp. 802–808.
Radaj, D., Sonsino, C. M., and Fricke, W. (2006). Fatigue assessment of welded joints by local approach. Woodhead, Woodhead Publishing.
Saiprasertkit, K., Hanji, T., and Miki, C. (2012). “Fatigue strength assessment of load-carrying cruciform joints with material mismatching in low- and high-cycle fatigue regions on the effective notch concept.” International Journal of Fatigue, 40, pp. 120–128.
Tateishi, K. and Hanji, T. (2004). “Low cycle fatigue strength of butt-welded steel joint by means of new testing system with image technique.” International Journal of Fatigue, 26, pp. 1349–1356.
Tateishi, K., Hanji, T., and Minami, K. (2007). “A prediction model for extremely low cycle fatigue strength of structural steel.” International Journal of Fatigue, 29(5), pp. 887–896.
Usami, T. (2006). Guidelines for seismic and damage control design of steel bridges. Japan Society of Steel Construction (in Japanese).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hanji, T., Park, JE. & Tateishi, K. Low cycle fatigue assessments of corner welded joints based on local strain approach. Int J Steel Struct 14, 579–587 (2014). https://doi.org/10.1007/s13296-014-3015-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13296-014-3015-8