Mesoscopic analyses of porous concrete under static compression and drop weight impact tests

Title: Mesoscopic analyses of porous concrete under static compression and drop weight impact tests
Author(s): A.S. Agar Ozbek, R.R. Pedersen, J. Weerheijm, A. Simone, K. van Breugel, B. Sluys
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: 495 - 502
Total Pages: 8
Nb references: 5
Language: English

Abstract: The failure process in highly porous concrete was analyzed experimentally and numerically. A triaxial visco-plastic damage model and a mesoscale representation of the material composition were considered to reproduce static compression and drop weight impact tests. In the mesoscopic model, concrete was considered as a four-phase material incorporating aggregates, bulk cement paste, interfacial transition zones and meso-size air pores. The stress-displacement relations obtained from static compression tests, the stress values, and the corresponding damage levels provided by the drop weight impact tests were used to compare numerical and experimental results. The objective is to analyze the mechanical properties of a highly porous cementitious material numerically in accordance with the exprimental results.

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