Localization of Propagation of Failure in Concrete Specimens Assessed by Means of Acoustic and Electromagnetic Emission and Numerical Simulations
|
|
Vaclav Vesely,
Petr Frantik,
Ondrej Vodak,
Zbynek Kersner
|
| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
|
2011, Volume 11, Issue 2, Pages 163-173
|
|
Doi: 10.2478/v10160-011-0036-5
|
|
This paper presents a numerical analysis aimed at verification of the monitoring of failure – its propagation and the locations of the individual failure events – in quasi-brittle cement-based materials. The failure monitoring methodology in question is performed using a technique based on utilization of (a combination of) acoustic emission (AE) and electromagnetic emission (EME) phenomena. The analysis is conducted on concrete laboratory specimens and aims to reveal the type and intensity of failure which can be captured by this experimental technique. The computational tools ATENA and FyDiK are employed in the numerical analysis, the first being based on continuum mechanics with an implemented cohesive crack model while the second utilizes the physical discretization of continuum, again with a material model that takes account of the cohesive nature of quasi-brittle fracture.
|
|
Download full version of article
|
