In this paper, a pressure vessel test is described which is viewed as an axis-symmetric structure in order to perform an initial check of the adopted model defined by the plate-like finite elements. This approach gives the possibility of comparing the results obtained for the stress and deformation field with the patterns of classical elasticity th...

By Nermin Bišćević, Husmira Bišćević

More recently a modified stainless steels have been used to produce various structural elements that work in complex operating conditions. Stainless steel X8CrNiS18-9 (standard EN 10088-3: 2005) is the most commonly used austenitic stainless steel due to its good machinability. This steel has high mechanical and working properties thanks to a compl...

By Derviš Mujagić, Mustafa Hadžalić, Aida Imamović, Sulejman Muhamedagić

In the following paper results of the investigation of the “Bauschinger effect” are presented. It was done by model which was made in ABAQUS and observed from deep rolling simulation results of residual stresses. Later, comparison of the results are presented by variation of forces and overlapping factor. Deep rolling (DR) is a mechanic...

By Ammar Sejdinoski

The results of two light optical tomographies (LOT) of two-phase steels are presented and compared in this paper. Two-phase steels show a microstructure consisting of a carbon-rich second phase and a ferritic matrix. In this work, microstructures are compared with a martensitic and a bainitic second phase. Tomographies are very important for materi...

By Emina Vardo, Jessica Gola, Frank Mücklich

In the technology of bentonite mixture mold unexplored fields are the properties of a mixture of a quartz sand fraction 0.106 mm, 0.3 mm and 0.425 mm and the possibility of stacking in horizontal layers in the mold. The investigation is related to the layers of the following combination of sand fractions: 0.3 / 0.106 / 0.425 mm, 0.106 / 0.425 / 0.3...

By Ajla Huseljić, Ana Beroš, Hasan Avdušinović

This paper describes a few examples of the recovery of manganese from steel slag and dust by using different technologies based on acid leaching.Reductive leaching in sulfuric acid (H2SO4) for recovery of manganese from electric arc furnace dust (EAFD) was represented. Recovery of manganese and iron was increased with increasing in the sulfuric aci...

By Aida Imamović, Raza Sunulahpašić, Amna Hodžić

The microscope has become a more common tool in the cement industry. Evaluation of clinker using microscopy is a powerful technique that can help improve clinker production and cement quality. The key to using the microscopy is understanding the process of clinker production namely how raw materials are transformed into clinker. These transformatio...

By Nevzet Merdić, Nedžad Haračić, Ilhan Bušatlić, Nadira Bušatlić, Adis Merdić

Basic raw materials for paper production are cellulose fibers and water. Water plays a major role in the process of cellulose and paper production and it is present in almost all phases of the cellulose fiber production process. Because of that the cellulose and paper industry is considered to be one of the largest consumers of natural resource pol...

By Ilhan Bušatlić, Šefkija Botonjić, Azra Halilović

The regulations on air quality in Bosnia and Herzegovina are based on European Union regulations and they rely on defined limits for concentrations of certain pollutants. Although the law stipulates that the public must be informed on the quality of environmental parameters in a clear, simple and easily understandable manner, this is not the case i...

By Samir Lemeš

Urban environments are subject to various pollutions where, among other things, acoustic pollution. Consequently, the study of acoustic pollution is an issue that is addressed in several aspects: economic, political and scientific / research.In this paper we propose a simulation model through the Matlab / Simulink software that shows the effect of ...

By Jozef Bushati, Virtyt Lesha, Darko Petković, Diana K Karuović