A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of damage in GFRP repaired steel fiber reinforced concrete beams using acoustic emission technique
In the present study, monitoring of damage initiation and progression in steel fiber reinforced beams (SFRBs) subjected to half cyclic loading under flexure is attempted using acoustic emission (AE) technique. Variation in AE parameters of cumulative AE hits and acoustic energy with damage progression in these beams along with their flexural performance is studied and compared. Further SFRB beams failed to 90% damage level are repaired using GFRP wraps and are subjected to flexural loading and simultaneous AE monitoring. Variation in AE parameters along with load deflection behavior for control SFRB and retrofitted SFRB beams have been discussed and compared. Based on AE and load–deflection data, Damage Index values were calculated and Damage States have been proposed which can help in providing an early warning of failure proximity. Subsequently empirical relationships have been developed between Damage Index and AE parameters using genetic programming (GP) technique and are in excellent coherence with experimental results. It can be concluded from the study that AE analysis is an effective tool for damage monitoring in SFRB and GFRP repaired SFRB beams.
Evaluation of damage in GFRP repaired steel fiber reinforced concrete beams using acoustic emission technique
In the present study, monitoring of damage initiation and progression in steel fiber reinforced beams (SFRBs) subjected to half cyclic loading under flexure is attempted using acoustic emission (AE) technique. Variation in AE parameters of cumulative AE hits and acoustic energy with damage progression in these beams along with their flexural performance is studied and compared. Further SFRB beams failed to 90% damage level are repaired using GFRP wraps and are subjected to flexural loading and simultaneous AE monitoring. Variation in AE parameters along with load deflection behavior for control SFRB and retrofitted SFRB beams have been discussed and compared. Based on AE and load–deflection data, Damage Index values were calculated and Damage States have been proposed which can help in providing an early warning of failure proximity. Subsequently empirical relationships have been developed between Damage Index and AE parameters using genetic programming (GP) technique and are in excellent coherence with experimental results. It can be concluded from the study that AE analysis is an effective tool for damage monitoring in SFRB and GFRP repaired SFRB beams.
Evaluation of damage in GFRP repaired steel fiber reinforced concrete beams using acoustic emission technique
Goyal, Priya (author) / Sharma, Shruti (author) / Kwatra, Naveen (author)
Structural Concrete ; 23 ; 907-922
2022-04-01
16 pages
Article (Journal)
Electronic Resource
English
Structural Behavior of Reinforced Concrete Beams Repaired or Strengthened by GFRP or Steel Plate
| British Library Conference Proceedings | 1996
Reinforced Concrete Beams Damaged and Repaired with GFRP: Dynamic Testing and Modelling
| British Library Conference Proceedings | 2001
Evaluation of damage in reinforced concrete bridge beams using acoustic emission technique
| British Library Online Contents | 2012