Issue 37

Frattura ed Integrità Strutturale, 37 (2016); International Journal of the Italian Group of Fracture

Y. Hos, M. Vormwald Growth of long fatigue cracks under non-proportional loadings – experiment and simulation …............. 234 T. Wang, L. Susmel Estimation of fatigue lifetime for selected metallic materials under multiaxial variable amplitude loading 241 D. Angelova, R. Yordanova, T. Lazarova, S. Yankova On fatigue behavior of two spring steels. Part I: Wöhler curves and fractured surfaces …........……… 249 D. Angelova, R. Yordanova, T. Lazarova, S. Yankova On fatigue behaviour of two spring steels. Part II: Mathematical models ….........................………… 258 D. Angelova, R. Yordanova, A. Georgiev, S. Yankova On monitoring of mechanical characteristics of hot rolled S355J2 steel …........…………………..… 265 Petar Velev, Rayna Bryaskova Novel magnetic composites based on water soluble unsaturated polyester resin and iron oxide nanoparticles ……………………………………………………………..........………… 272 D. Krastev, V. Paunov, B. Yordanov Recast layers on high speed steel surface after electrical discharge treatment in electrolyte …...................... 280 I. Mazur, T. Koinov Quality Control system for a hot-rolled metal surface …........…………………………………… 287 E. Mihailov, P. Popgeorgiev, M. Ivanova An effect of heat insulation parameters on thermal losses of water-cooled roofs for secondary steelmaking electric arc furnaces …........……………………………………………………………….. 297 U. Muhin, S. Belskij, E.Makarov, T. Koynov Simulation of accelerated strip cooling on the hot rolling mill run-out roller table …........……….…… 305 U. Muhin, S. Belskij, E.Makarov, T. Koynov Application of between- stand cooling in the production hot – rolled strips …........……………….… 312 U. Muhin, S. Belskij, T. Koynov Study of the influence between the strength of antibending of working rolls on the widening during hot rolling of thin sheet metal ….............................................................................................………… 318 C. Patil, H. Patil, H. Patil Experimental investigation of hardness of FSW and TIG joints of Aluminium alloys of AA7075 and AA6061 …........…………………………………………………………………… 325 G. Cricrì, M. Perrella Modelling the mechanical behaviour of metal powder during Die compaction process …........………… 333 Q. Like, D. Jun Analysis on the growth of different shapes of mineral microcracks in microwave field …........………… 342 Z. Hongping, Z. Lili, X. Zhengbing Analysis of time-dependent reliability of degenerated reinforced concrete structure …............………… 352

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