Expectancy of the lifetime of bonded steel joints due to long-term shear loading

• Autorzy: Sahellie S. , Pasternak H.

Identyfikatory

DOI

10.1016/j.acme.2015.05.004

• Języki publikacji: EN

Abstrakty

EN

In this paper, the time-dependent behaviour, shear creep behaviour, of double lap galvanized steel joints loaded in shear by tension, is investigated at room temperature. The studied joints are assembled by bonding the galvanized steel adherends by a rigid structural adhesive (epoxy). Two thicknesses of the bondline (0.35 mm and 0.65 mm) are used. The specimens are tested under different shear stress levels. Well-known rheological and empirical models are used to describe the behaviour of the adhesive. The relevant models parameters are experimentally estimated. The time-to-failure of the studied specimens is predicted in accordance with short-term tests (rapid-loading tests) performed on similar specimens. The applied shear stresses for particular lifetimes of the bonded joints are estimated.

Słowa kluczowe

EN

epoxy; shear creep; steel joint

PL

połączenia stalowe; żywica epoksydowa; laminat

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. 15, no. 4
• Strony: 1061--1069
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Sahellie S.

• Brandenburg University of Technology Cottbus-Senftenberg, Department of Steel and Timber Structures, K.-Wachsmann-Allee 2, 03046 Cottbus, Germany

autor

Pasternak H.

• Brandenburg University of Technology Cottbus-Senftenberg, Department of Steel and Timber Structures, K.-Wachsmann-Allee 2, 03046 Cottbus, Germany

Bibliografia

• [1] P. Majda, J. Skrodzewicz, A modified creep model of epoxy adhesive at ambient temperature, International Journal of Adhesion & Adhesives 29 (2009) 396–404.
• [2] I.G. Costa, A.O. Barros, Assessment of the long term behaviour of structural adhesives in the context of NSM flexural strengthening technique with prestressed CFRP laminates, in: J. Barros, J. Sena-Cruz (Eds.), FRPRCS11, UM, Guimarãe, 2013.
• [3] P. Meshgin, K. Choi, M. Taha, Shear creep of epoxy at the concrete–FRP interfaces, Composites Part B: Engineering 38 (2007) 772–780.
• [4] P. Meshgin, K. Choi, M. Taha, Experimental and analytical investigations of creep of epoxy adhesive at the concrete–FRP interfaces, International Journal of Adhesion & Adhesives 29 (2009) 56–66.
• [5] R. Boyes, Adhesive bonding of stainless steel, strength and durability, (Ph.D. thesis), Sheffield Hallam University, 1998.
• [6] R.A. Queiroz, E.M. Sampaio, V.J. Cortines, N.R. Rohem, Study on the creep behavior of bonded metallic joints, Applied Adhesion Science 8 (2) (2014).
• [7] ETAG 001, Guideline for European Technical Approval of Metal Anchors for Use in Concrete – Part Five, Bonded Anchors, 2008.
• [8] J.S. Horvath, Mathematical Modelling of the Stress–Strain– Time Behaviour of Geosynthetics Using the Findley Equation, General Theory and Application to EPS-Block Geofoam, Manhattan College Research Report Nr. CE/GE-98-3, USA, 1998.
• [9] V.Y.G. Yanni, Multi-scale investigation of tensile creep of ultrahigh performance concrete for bridge applications, (Doctoral Thesis), Georgia Institute of Technology, 2009.
• [10] S. Sahellie, H. Pasternak, Temperature effect on mechanical behaviour of adhesive bonded steel joints under short and long-term loading, in: 13th International Scientific Conference, vol. 2, Sofia, (2013) 7–12.
• [11] C.-W. Feng, C.-W. Keong, Y.-P. Hsueh, Y.-Y. Wang, H.-J. Sue, Modeling of long-term creep behavior of structural epoxy adhesives, International Journal of Adhesion & Adhesives 25 (2005) 427–436.
• [12] W.R. Broughton, Creep Testing of Adhesive Joints Analysis of Creep Rupture Data, NPL Report CMMT (A) 195 Nr. 14, UK, 1999.
• [13] R.A. Cook, E.P. Douglas, T.M. Davis, Adhesive Anchors in Concrete under Sustained Loading Conditions, NCHRP, Report 639, University of Florida, Transportation Research Board, Washington, 2009, ISSN 0077-5614, ISBN 978-0-309- 11788-3.
• [14] H. Pasternak, J. Meinz, Versuche zu geklebten Verstärkungen im Stahlhochbau, Bauingenieur 81 (2006) 212–217.
• [15] H. Pasternak, J. Meinz, Kleben im Stahlbau – zwei Beispiele aus dem Fassadenbau, Bauingenieur 82 (2007) 115–124.
• [16] S. Sahellie, Study on the temperature effect on lap shear adhesive joints in lightweight steel construction, (Ph.D. thesis), Brandenburg University of Technology Cottbus- Senftenberg, Series of Steel Construction (Stahlbau) (2015), issue 9, ISSN 1611-5023.