The presented investigation work investigates thermal properties of the ultra-high hardness (UHH) armour steel. Steel is distinguished with high hardness and strength. It is sold in the quenched or tempered state, because achieving planned hardness which has to be between 590 HB and 640 HB. In the frame of the investigation work the analysis of the...

By Borut Kosec, Tjaša Kranjec, Blaž Karpe, Aleš Nagode, Milan Bizjak, Jure Bernetič, Mirko Gojić, Zijah Burzić, Milan Rimac, Gorazd Kosec

This paper describes the behavior of welded steel components NN-70 in the presence of defects such as cracks in the operation of variable load. Knowing the conditions under which the particular construction operates and knowing the welding technology of the same, we can solidly calculate and assume the remaining life of exploration. By assessing th...

By Dženana Gačo, Zijah Burzić, Fadil Islamović, Nermin Bišćević

The paper presents numerical procedure for determining fracture mechanics parameters in elastic￾plastic conditions aroundthe crack tip. Applied to this instance, the analysis included the determination of contour J integral by the energy domain integral method. Both, numerical model of standard dimensions SENB specimen and network of finite element...

By Bahrudin Hrnjica, Fadil Islamović, Dženana Gačo, Zijah Burzić