ACOUSTIC EMISSION TESTING AND MICROFRACTURE PROCESSES

IN RECENT YEARS KNOWLEDGE OF THE MECHANISMS OF MICROCRACK FORMATION AND PROPAGATION HAS INCREASED GREATLY. IT IS NOW UNDERSTOOD, AT LEAST QUALITATIVELY, HOW PLASTIC DEFORMATION IS ABLE TO INITIATE CRACKS, HOW CRACKS ARE ABLE TO GROW, AND HOW LARGE-SCALE GROWTH LEADS TO MACROFRACTURE. NONETHELESS, THERE ARE MANY QUANTITATIVE ASPECTS OF THE MICROFRACTURE PROCESS THAT STILL ARE NOT WELL UNDERSTOOD. SOME OF THESE ASPECTS MAY BE BETTER UNDERSTOOD WITH ACOUSTIC EMISSION TESTING. THOSE AREAS IN WHICH ACOUSTIC EMISSION TESTING HAS ASSISTED OR COULD ASSIST MATERIALS SCIENTIST WHO ARE INVESTIGATING MICROFRACTURE PROCESSES IN SOLIDS ARE DESCRIBED. /AUTHOR/

• Supplemental Notes:
  • Vol 11, No 3, PP 13-16, 8 FIG
• Authors:
  • Tetelman, A S
• Publication Date: 1971-3

Media Info

• Serial:
  • Materials Research and Standards
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Acoustics; Cracking; Emissivity; Fracture mechanics; Microcracking; Plastic deformation; Sonic tests
• Uncontrolled Terms: Crack propagation; Microcracks
• Old TRIS Terms: Sonic testing
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217095
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 22 1971 12:00AM