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A platform for research: civil engineering, architecture and urbanism
An experimental study on acoustic emission energy and fracture energy of concrete
The present experimental study makes clear some extent about the fundamental differences between the two methods namely fracture energy calculated using RILEM method of Hillerborg and fracture energy calculated using fictitious crack model . It was observed that AE events containing higher energy located around the notch tip. It may be useful to relate acoustic emission energy to fracture energy of concrete. This relationship may be useful to develop a laboratory tool. This laboratory tool could be useful to study the damage in concrete structures. The author's opinion is that this laboratory tool can be used in a laboratory under controlled conditions, as opposed to a field technique. Regarding damage models, there is a large class of concrete performance models based on principles of continuum damage mechanics. These models often use parameters such as crack density to predict changes in stiffness due to damage. Up to now crack density is a difficult thing to measure, but AE has the potential to provide information on crack density that could then be used to tune the continuum damage models related to concrete.
An experimental study on acoustic emission energy and fracture energy of concrete
The present experimental study makes clear some extent about the fundamental differences between the two methods namely fracture energy calculated using RILEM method of Hillerborg and fracture energy calculated using fictitious crack model . It was observed that AE events containing higher energy located around the notch tip. It may be useful to relate acoustic emission energy to fracture energy of concrete. This relationship may be useful to develop a laboratory tool. This laboratory tool could be useful to study the damage in concrete structures. The author's opinion is that this laboratory tool can be used in a laboratory under controlled conditions, as opposed to a field technique. Regarding damage models, there is a large class of concrete performance models based on principles of continuum damage mechanics. These models often use parameters such as crack density to predict changes in stiffness due to damage. Up to now crack density is a difficult thing to measure, but AE has the potential to provide information on crack density that could then be used to tune the continuum damage models related to concrete.
An experimental study on acoustic emission energy and fracture energy of concrete
Eine experimentelle Untersuchung der Schallemission und der Bruchenergie von Beton
Vidya Sagar, R. (author)
2009
4 Seiten, 2 Bilder, 2 Tabellen, 11 Quellen
Conference paper
English
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