A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damage analysis in steel fibre reinforced concrete under monotonic and cyclic bending by means of acoustic emission monitoring
https://orcid.org/0000-0002-3259-6836
https://orcid.org/0000-0001-9732-3858
Abstract This paper reports on the monotonic and cyclic bending behaviour and damage evolution of steel fibre reinforced concrete (SFRC), by three-point bending tests assessed with acoustic emission (AE) monitoring. Hooked-end fibres are used with 0.25 or 0.5 V% and monotonic, progressive cyclic and variable cyclic loading are applied. The aim is to evaluate AE analysis methods for both monotonic and cyclic behaviour, and to assess the cyclic damage development by combined AE parameters and mechanical testing characteristics. The research shows the agreement between monotonic envelope and cyclic stress-CMOD curves. Furthermore, AE monitoring proves to be complementary to mechanical testing for evaluating damage accumulation in SFRC under bending. Experimental laws between damage evolution and AE activity are determined for different material types and compared to literature data. The relation between damage indicators and AE events indicates the occurrence of fatigue damage development for multiple load cycles at high load limits.
Highlights Monotonic and cyclic behaviour of SFRC is studied by three-point bending testing. Acoustic emission measurements and mechanical behaviour parameters assess the damage. Displacement, plastic CMOD, damage and AE activity are related for load cycles. Fatigue damage development is observed for multiple load cycles at high load limits. An empirical law was found between damage indicators and normalised AE activity.
Damage analysis in steel fibre reinforced concrete under monotonic and cyclic bending by means of acoustic emission monitoring
https://orcid.org/0000-0002-3259-6836
https://orcid.org/0000-0001-9732-3858
Abstract This paper reports on the monotonic and cyclic bending behaviour and damage evolution of steel fibre reinforced concrete (SFRC), by three-point bending tests assessed with acoustic emission (AE) monitoring. Hooked-end fibres are used with 0.25 or 0.5 V% and monotonic, progressive cyclic and variable cyclic loading are applied. The aim is to evaluate AE analysis methods for both monotonic and cyclic behaviour, and to assess the cyclic damage development by combined AE parameters and mechanical testing characteristics. The research shows the agreement between monotonic envelope and cyclic stress-CMOD curves. Furthermore, AE monitoring proves to be complementary to mechanical testing for evaluating damage accumulation in SFRC under bending. Experimental laws between damage evolution and AE activity are determined for different material types and compared to literature data. The relation between damage indicators and AE events indicates the occurrence of fatigue damage development for multiple load cycles at high load limits.
Highlights Monotonic and cyclic behaviour of SFRC is studied by three-point bending testing. Acoustic emission measurements and mechanical behaviour parameters assess the damage. Displacement, plastic CMOD, damage and AE activity are related for load cycles. Fatigue damage development is observed for multiple load cycles at high load limits. An empirical law was found between damage indicators and normalised AE activity.
Damage analysis in steel fibre reinforced concrete under monotonic and cyclic bending by means of acoustic emission monitoring
https://orcid.org/0000-0002-3259-6836
https://orcid.org/0000-0001-9732-3858
Abstract This paper reports on the monotonic and cyclic bending behaviour and damage evolution of steel fibre reinforced concrete (SFRC), by three-point bending tests assessed with acoustic emission (AE) monitoring. Hooked-end fibres are used with 0.25 or 0.5 V% and monotonic, progressive cyclic and variable cyclic loading are applied. The aim is to evaluate AE analysis methods for both monotonic and cyclic behaviour, and to assess the cyclic damage development by combined AE parameters and mechanical testing characteristics. The research shows the agreement between monotonic envelope and cyclic stress-CMOD curves. Furthermore, AE monitoring proves to be complementary to mechanical testing for evaluating damage accumulation in SFRC under bending. Experimental laws between damage evolution and AE activity are determined for different material types and compared to literature data. The relation between damage indicators and AE events indicates the occurrence of fatigue damage development for multiple load cycles at high load limits.
Highlights Monotonic and cyclic behaviour of SFRC is studied by three-point bending testing. Acoustic emission measurements and mechanical behaviour parameters assess the damage. Displacement, plastic CMOD, damage and AE activity are related for load cycles. Fatigue damage development is observed for multiple load cycles at high load limits. An empirical law was found between damage indicators and normalised AE activity.
Damage analysis in steel fibre reinforced concrete under monotonic and cyclic bending by means of acoustic emission monitoring
De Smedt, Maure (author) / Vrijdaghs, Rutger (author) / Van Steen, Charlotte (author) / Verstrynge, Els (author) / Vandewalle, Lucie (author)
2020-07-27
Article (Journal)
Electronic Resource
English
Acoustic emission behavior of steel fibre reinforced concrete under bending
| Online Contents | 2009
Acoustic emission behavior of steel fibre reinforced concrete under bending
| British Library Online Contents | 2009
Acoustic emission behavior of steel fibre reinforced concrete under bending
| Online Contents | 2009