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Thick-walled cylinder theory applied on a conical wedge anchorage
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
Technical University of Denmark.
2011 (English)In: Meccanica (Milano. Print), ISSN 0025-6455, E-ISSN 1572-9648, Vol. 46, no 5, 959-977 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we derive and examine an analytical model for the internal stresses and strains within the anchorage for a prescribed presetting distance. This model is derived from the theory of thick walled cylinders under the assumptions regarding plane stress and axial symmetry. We simplify the resulting system of ten nonlinear equations and derive a method for solving them numerically. A comparison of plotted results for three different angles on the wedge's outer surface and six different presetting distances follows. These results are also compared to both axi-symmetric and 3D FE (Finite Element) models. Analytical and FE axi-symmetric models show good correspondence, though compared to the 3D FE model, they show a clear difference in the predicted radial stress distribution on the FRP. Thus, the derived analytical model can be a useful and faster alternative to FE modeling of axi-symmetric anchorages. However, the model is of more restricted value and should be complemented by, for example, 3D FE models for other designs.

Place, publisher, year, edition, pages
2011. Vol. 46, no 5, 959-977 p.
Keyword [en]
Keyword [sv]
Research subject
Structural Engineering; Mathematics
URN: urn:nbn:se:ltu:diva-3473DOI: 10.1007/s11012-010-9352-6Local ID: 14d568a0-6d91-11df-ab16-000ea68e967bOAI: diva2:976331
Validerad; 2011; 20100601 (grip)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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