Pretraživanje
Prikaz rezultata 101-110 od 112
Concrete shrinkage mechanism and examples of concrete with different recycled aggregates
(University of Structural Engineering and Architecture (VSU) "Luben Karavelov" Sofia, Bulgaria, 2016)
Concrete shrinkage is reduction of its volume which is caused by hydration of cement and loss of moisture, independently of the external load. Aggregate can be considered inert in terms of volume changes, so concrete ...
Effect of nano-silica and aggregate type on properties of ultra high performance concrete
(United Kingdom : University of Dundee, 2016)
The aim of this investigation is to develop ultra high performance concrete (UHPC) for multipurpose - higher mechanical and ionizing radiation protection. The effect of nano-silica replacement (2 or 5%) on the properties ...
Assessment of the behaviour of fatigue loaded HSLA welded steel joint by applying fracture mechanics parameters
(New Trends in Fatigue and Fracture NT2F12, Brasov, Romania, Proceedings, 2012)
In discussion of the welded joints from fracture mechanics point of
view, it is assumed that the welded joint is pre-cracked and that therefore fatigue life
of the pre-cracked structure is determined by the period of ...
The influence of nanosilica on mechanical properties of high strength concrete / Uticaj nanosilike na mehanička svojstva betona visokih čvrstoća
(Zbornik radova Građevinskog fakulteta, 2016)
Veliki broj istraživanja u svetu se bavi dobijanjem materijala koji ima znatno poboljšana svojstva u odnosu na konvencionalne matererijale. Primena nanosilike je jedna od mogućnosti za dobijanje betona visokih čvrstoća. U ...
Bucket-wheel excavator gearbox failure analysis and reliability assessment
(Institute for Engineering Design and Product Development-ViennaFaculty of Mechanical Engineering University of Belgrade, 2019)
This paper presents the analysis of failure causes and reliability
assessment executed for the gearbox of the bucket-wheel excavator SRs
470.20/3 “TAKRAF” (produced by “Lauhhammer”, Germany), which is
engaged in overburden ...
Mechanical properties of welded pipes produced by high frequency welding of the steel API J55
(University of Banja Luka, Faculty of Mechanical Engineering, Banja Luka, Republika Srpska, 2019)
Selection of steel, dimensions and methods of production of welded pipes is
a segment of the design process, because it is closely related to the function of a piping
as a structural whole under predetermined conditions ...
Determination of Residual Fatigue Life of Welded Structures at Bucket-Wheel Excavators through the Use of Fracture Mechanics
(Elsevier Science Bv, Amsterdam, 2018)
This paper presents a methodological approach for the assessment of service life of vital welded structures of a bucket-wheel excavator Sch Rs 650/5x24 ('Thyssen Krupp', Germany) boom, subjected to cyclic loading with a ...
Indicators of HSLA steel behavior under low cycle fatigue loading
(Elsevier Science Bv, Amsterdam, 2016)
In present paper, the experimental research of the behaviour of high-strength low-alloy steel (HSLA) exposed to low-cycle fatigue (LCF) with controlled and fully reversible strain (Delta epsilon/2 = const, R epsilon = ...
Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory
(Elsevier Science Bv, Amsterdam, 2016)
The paper presents a multidisciplinary approach to the assessment of seismic performances based on the Performance-Based Earthquake Engineering (PBEE), taking into account the multi-criteria optimization theory in analyzing ...
Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004
(GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro, 2016)
A probabilistic concept for determining pile bearing capacity is presented, taking into account the variability of CPT test parameters and methodology of calculation according to the requirements of Eurocode 7 (EN 1997-1: ...