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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mang, H. A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2004Comparative studies of 3D-constitutive models for concrete: Application to mixed-mode fracturecitations
- 2003Shapes of loading surfaces of concrete models and their influence on the peak load and failure mode in structural analysescitations
- 2001Numerical investigations of headed studs with inclined shoulders
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article
Shapes of loading surfaces of concrete models and their influence on the peak load and failure mode in structural analyses
Abstract
This paper focusses on the influence of the deviatoric shape of the employed loading surface on the predicted failure of concrete. For this purpose, the Extended Leon Model (ELM) [1] and a multi-surface model are considered. The multi-surface model consists of three Rankine surfaces and the Drucker–Prager surface. Whereas the Drucker–Prager surface is characterized by a circular shape in the deviatoric plane, the ELM accounts for the dependence of the strength of concrete on the Lode angle. It is characterized by an elliptic loading surface in the deviatoric plane. The eccentricity e defines the out-off-roundness. It allows a smooth transition from a circular (e=1) to an almost triangular shape (e≈0.5) of the loading surface in the deviatoric plane.The significance of the deviatoric shape of the loading surface on the predicted peak load and failure mode of concrete structures is investigated by means of two example problems: a plane-strain compression test characterized by compressive failure and an anchor-bolt test characterized by shear failure.