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A. Bhatt and M.B. Parappagoudar

Science,Engineering and Technology,Volume 2, Issue 12, December, ISSN 2319-8753. [18] Belato Rosado, D., De Waele, W., Vanderschueren, D.&Hertelé, S.(2013). Latest developments in mechanical properties and metallurgical features of high strength line pipe steels,International Journal of Sustainable construction and design, Volume 4, No.1 [19] Ismar, H., Burzic,Z., Kapor, N.J. & Kokelj, T. Experimental Investigation of High-Strength Structural Steel Welds, Journal of Mechanical Engineering 58 (2012) 6, 422-428. [20] Saluja

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Małgorzata Skorupa and Tomasz Machniewicz

References Koning de A. U., ten Hoeve H.J., Henriksen T.K.: The description of crack growth on the basis of the Strip Yield model for the computation of crack opening loads, the crack tip stretch and strain rates. NLR TP 97511 L, National Aerospace Laboratory NLR, The Netherlands, 2004. Skorupa M., Skorupa A., Machniewicz T., Korbel A.: Calibration of the Strip Yield model for the predictions of crack growth in structural steel. Final report on the KBN project 4 T07C 018 26, AGH University of Science

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T. Lipiński and A. Wach

, Zmęczeniowe pękanie metali, (1985) WNT War-saw (in Polish). [5] T. Lipiński, A. Wach, The effect of out-of-furnace treatment on the properties of high-grade medium-caborn structural steel, Arch. of Foundry Eng. 10 , 93-96 (2009). [6] T. Himemiya, W. Wołczyński, Prediction of Solidification Path and Solute Redistribution of an Iron-based Multi-component Alloy Considering Solute Diffusion in the Solid Materials. Transactions of the Japan Institute of Metals 43 , 2890-2896 (2002). [7] W. Wołczyński, Concentration Micro-Field for Lamellar Eutec-tic Growth. Defect and

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A. Kokosza and J. Pacyna

References M.E. Blantier, Fazovyje prevraščenija pri tiermičeskoj obrabotkie stali, Mietallurgizdat Moskva (1962). J. Nutting, Journal of the Iron and Steel Institute 207 , 872 (1969). F.B. Pickering, Physical Metallurgy of Stainless Steel Developments, Int. Met. Rev. 21 , 227 (1976). F.B. Pickering, Physical Metallurgy and the Design of Steels, Applied Science Publishers LTD London (1978). B.K. Jha, R. Avtar, S. Dwivedi

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T. Lipiński

REFERENCES [1] J. Szala, Assessment of Fatigue Life of Machine Elements Under Random Loads and Programmatic. Bydgoszcz University of Technology and Agriculture, Bydgoszcz 1980 (in Polish). [2] W. Wołczyński, Mathematical Modeling of the Microstructure of Large Steel Ingots, Entry 196 [in:] The Encyclopedia of Iron, Steel, and Their Alloys, Eds. Taylor & Francis Group, New York-USA, 2015 (in print). DOI: 10.1081/E-EISA-120053685. [3] A. Warhadpande, B. Jalalahmadi, T. Slack, F. Sadeghi, Int J Fatigue 32 685 (2010). [4] Guide engineer

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Radim Čajka and Petr Martinec

Structural Failures of Buildings Caused by Volume Changes of Steel Slag

The paper deals with structural failures of buildings caused by volume changes of steel slag in subsoil of hospital in Ostrava-Poruba. The building consists of a monolithic reinforced concrete frame structure with floor slabs on slag sub-base. Latest measured increases in deformations show that the slag swelling in the sub-soil continues, and as the measured dependences show, there is no stabilization of the movement.

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Jakub Kowalski and Janusz Kozak

Abstract

In the shipbuilding industry, the risk of brittle fracture of the structure is limited by using certified materials with specified impact strength, determined by the Charpy method (for a given design temperature) and by supervising the welding processes (technology qualification, production supervision, non-destructive testing). For off-shore constructions, classical shipbuilding requirements may not be sufficient. Therefore, the regulations used in the construction of offshore structures require CTOD tests for steel and welded joints with a thickness greater than 40 mm in the case of high strength steel and more than 50 mm in the case of other steels. Classification societies do not accept CTOD test results of samples with a thickness less than the material tested. For this reason, the problem of theoretical modeling of steel structure destruction process is a key issue, because laboratory tests for elements with high thickness (in the order of 100 mm and more) with a notch are expensive (large samples, difficulties in notching), and often create implementation difficulties due to required high load and range of recorded parameters. The publication will show results and conclusions from numerical modeling of elastic properties for steel typical for offshore applications.

Calculations were carried out at the Academic Computer Centre in Gdańsk.

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Barbara Sołtysik and Robert Jankowski

References 1. Anagnostopoulos S.A.: Pounding of buildings in series during earthquakes, Earthquake Engineering and Structural Dynamics, 16 (1988) 443-456. 2. Anagnostopoulos S.A., Spiliopoulus K.V.: An investigation of earthquake induced pounding between adjacent building, Earthquake Engineering and Structural Dynamics, 21 (1992) 289-302. 3. Chau K.T., Wei X.X., Guo X., Shen C.Y.: Experimental and theoretical simulations of seismic poundings between two adjacent structures, Earthquake Engineering and Structural

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Bogdan Pawłowski and Piotr Bała

References Bhadeshia H.K.D.H., 2010. Phase transformations contributing to the properties of modern steels . Bulletin of the Polish Academy of Science, Technical Sciences, 58, 2, p. 255-265. <http://www.dillinger.de/imperia/md/content/dillinger/publikationen/stahlbau/kundeninfo/en_10025_en.pdf> [02.11.2011]. Konieczny K., Bodzek M., 2003. Uzdatnianie wód kopalnianych do celów pitnych i na potrzeby gospodarcze . VI Ogólnopolska Konferencja Naukowa „Kompleksowe iszczegółowe problemy Inżynierii Środowiska”, Ustronie

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Jacek Dudkiewicz, Bronisław Gosowski and Piotr Organek

REFERENCES 1. Blicharski M.: Inżynieria materiałowa. Stal. Wydanie II zmienione i rozszerzone , Warszawa, WNT 2012. 2. Butnicki S.: Spawalnosć i kruchość stali , Warszawa, WNTechniczne 1991. 3. Czapliński K.: Dawne wyroby ze stopów żelaza , Wrocław, DWE 2009. 4. Dudkiewicz J., Gosowski B.: Generalizations of relations between strength and hardness of steel in structural elements under longitudinal load , Archives of Civil Engineering, (2004), 50, 1, 45-67. 5. Gosowski B., Kubica E.: Badania laboratoryjne konstrukcji metalowych