POWER SPECTRA ANALYSIS OF ACOUSTIC EMISSION WAVE OF CONCRETE

The main purpose of the paper is to obtain some fundamental data on the frequency characteristics of ae wave of concrete. Mortar specimens, two- phase model specimens consisting of mortar matrix and mortar aggregate and concrete specimens were tested under uniaxial compression, shear- compression and splitting tension. The location search of local fracture was also carried out by using the time lags of the onset of ae wave monitered by five sensors. Acoustic power spectra of ae waves were determined by the fast Fourier transformation method, and the effects of the fracture type and the stress level on power spectra, frequency components and so on were examined. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/858411679
• Supplemental Notes:
  • Second Australian Conference on Engineering Materials, Sydney, 6th to 8th July, 1981.
• Corporate Authors:

  University of New South Wales

  School of Civil Engineering, Anzac Parade
  Kensington, New South Wales  Australia  2033

  University of New South Wales

  Gate 9, High Street
  Kensington, New South Wales  Australia  2052
• Authors:
  • Tanigawa, Y
  • Yamada, K
  • Kiriyama, S I
• Conference:
  • Second Australian Conference on Engineering Materials, Sydney, 6th to 8th July, 1981.
• Publication Date: 1981

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 97-108

Subject/Index Terms

• TRT Terms: Acoustic emission tests; Aggregates; Compression; Compression tests; Concrete; Concrete tests; Conferences; Cracking; Electromagnetic spectrum; Failure; Fourier transforms; Fracture mechanics; Frequency (Electromagnetism); Location; Matrices (Mathematics); Mortar; Power spectra; Shear strength; Sound; Strength of materials; Stresses; Tensile strength; Tension; Test procedures; Waves
• Uncontrolled Terms: Fracture; Micro
• ITRD Terms: 4577: Aggregate; 5532: Compression; 4755: Concrete; 8525: Conference; 5211: Cracking; 5520: Failure; 6997: Frequency; 9061: Location; 6494: Matrix; 9045: Micro; 4769: Mortar; 5531: Shear; 6748: Sound; 6776: Spectrum; 5544: Strength (mater); 5502: Tension; 6288: Test method; 6767: Wave
• Subject Areas: Geotechnology; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00348625
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 85841 167 9
• Files: ITRD, TRIS, ATRI
• Created Date: Apr 28 1982 12:00AM