Conducted loading tests of plain concrete specimens are briefly introduced in the paper together with description of the performed numerical simulations of these tests in ATENA 3D software. The simulation results of concrete failure are analysed in detail and compared with the experimental results recording failure processes with the help of acoustic emission. The simulation results are in good agreement with the recorded data.

In order to predict the mechanical behavior of a material during its service life, it is important to evaluate its mechanical response under different types of external stresses by studying the initiation and development of cracks and the effects induced by damage and degradation. The non-destructive technique of analysis of acoustic emission, especially with source location and full wave-form analysis, provides excellent results on detecting and identifying initiations sites, cracking propagation and fracture mechanisms of polymer matrix composite, ceramic materials and rocks.For this study, loading tests in two different configurations were provided on specimens of same material and geometry. The significant AE features were monitored during each test and also locations of each AE event were estimated. Results of AE analysis are compared with a finite element analysis of the stress distribution and crack propagation within the specimens.

We’ve built this digital research platform to provide academics everywhere with fast, stable and secure digital access to our library of over 110,000 scholarly books and 800,000 journal articles. We’ve tested the platform in close cooperation with leading academic institutions. If you have any questions or you notice something doesn’t quite work as it should, please visit our Help/FAQ page and let us know.

This paper presents a numerical analysis aimed at verification of monitoring of failure – its propagation and the locations of the individual failure events – in quasi-brittle cement-based materials performed using a monitoring technique based on utilization of (combination of) acoustic emission (AE) and electromagnetic emission (EME) phenomena. The analysis is conducted on concrete laboratory specimens and helps to reveal the type and intensity of failure which can be captured by this experimental technique. Computational tools ATENA and FyDiK based on continuum mechanics with implemented cohesive crack model and physical discretization of continuum, again with a material model considering the cohesive nature of quasi-brittle fracture, respectively, are employed in the numerical analysis.