A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental observation of cracking and damage
It is important to understand the failure mechanisms of a material to improve its performance and to be able to predict its behavior. Nonlinearity and strain softening should be incorporated into any realistic material model. Three different test programs have been implemented to study the initiation and progression of cracking in concrete. Acoustic emission techniques were used to locate the formation of microcracks in real time. In order to study the development of surface cracks with high sensitivity (.2 microns), holographic interferometry was used. Optical microscopy and petrography was done to study internal crack patterns at different loading stages. Experiments were done on closed loop machines under uniaxial tension and compression and the effects of crack initiation, propagation and localization were monitored.
Experimental observation of cracking and damage
It is important to understand the failure mechanisms of a material to improve its performance and to be able to predict its behavior. Nonlinearity and strain softening should be incorporated into any realistic material model. Three different test programs have been implemented to study the initiation and progression of cracking in concrete. Acoustic emission techniques were used to locate the formation of microcracks in real time. In order to study the development of surface cracks with high sensitivity (.2 microns), holographic interferometry was used. Optical microscopy and petrography was done to study internal crack patterns at different loading stages. Experiments were done on closed loop machines under uniaxial tension and compression and the effects of crack initiation, propagation and localization were monitored.
Experimental observation of cracking and damage
Experimentelle Beobachtung von Rissen und Beschaedigungen
Shah, S.P. (author) / Maji, A. (author)
1988
15 Seiten, 12 Bilder, 18 Quellen
Conference paper
English
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