Acoustic emissions and electric signal recordings, when cement mortar beams are subjected to three-point bending under various loading protocols
作者: A. Kyriazopoulos
作者单位: 1Laboratory of Electronic Devices and Materials, Technological Educational Institute of Athens, 12210, Athens, Greece
刊名: Fracture and Structural Integrity, 2017, Vol.11 (40), pp.52 - 60
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.40.05
关键词: Pressure Stimulated CurrentsAcoustic EmissionsCement mortarThree point bendingb-value
原始语种摘要: Two experimental techniques are used study the response of cement mortar beams subjected to three-point bending under various loading protocols. The techniques used are the detection of weak electric current emissions known as Pressure Stimulated Currents and the Acoustic Emissions (in particular, the cumulative AE energy and the b-value analysis). Patterns are detected that can be used to predict upcoming fracture, regardless of the adopted loading protocol in each experiment. The experimental results of the AE and PSC techniques lead to the conclusion that when the calculated Ib values decrease, the PSC starts increasing strongly
全文获取路径: Gruppo Italiano Frattura 

  • mortar 灰泥
  • cement 胶结物
  • bending 弯曲
  • loading 加负载
  • point 
  • emissions 排放物
  • three 
  • various 千变万化的
  • PSC Preset Course
  • electric 电的