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Pro058

Failure process in concrete under static and impact tensile loading: experiments and numerical modelling



Title: Failure process in concrete under static and impact tensile loading: experiments and numerical modelling
Author(s): I. Vegt, R.R. Pedersen, J. Weerheijm, L.J. Sluys, A. Simone
Paper category : conference
Book title: International RILEM Symposium on Concrete Modelling - ConMod '08
Editor(s): E. Schlangen and G. De Schutter
Print-ISBN: 978-2-35158-060-8
e-ISBN: 978-2-35158-076-9
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 647 - 656
Total Pages: 10
Nb references: 5
Language: English


Abstract: A phenomenological rate-dependent model has been developed that successfully captures the structural behaviour of concrete at macroscopic level. However, failure of concrete is linked to processes at a lower scale, e.g. meso-scale. Without knowledge on the failure mechanisms at meso-scale, a proper prediction of failure under explosive loading conditions is not possible. Although the proposed macroscopic model gives an indication of the fracture process zone, fracture patterns are not realistically reproduced. Therefore, a mesoscopic model is developed that includes the meso-structure of concrete. In this paper, both macroscopic and mesoscopic models are presented and computational results have been compared with experimental results, with emphasis on global stress-displacement data as well as local fracture patterns.


Online publication: 2009-06-15
Publication type : full_text
Public price (Euros): 0.00