THE MEASUREMENT OF FRACTURE TOUGHNESS OF DUCTILE MATERIALS

NEAR TIP STRAIN IS PROPOSED AS A DUCTILE FRACTURE CRITERION. THIS CRITERION WAS USED TO STUDY THE ONSET OF SLOW GROWTH OF SURFACE CRACK. THE DATA FROM TWO BATCHES, B AND C, OF FULLY ANNEALED 2024-0 ALUMINUM ALLOY AND HY-80 STEEL SUBSTANTIATED THE PROPOSED CRITERION. THE MEASURED FRACTURE TOUGHNESS AT THE ONSET OF SURFACE CRACK GROWTH FOR THESE THREE MATERIALS ARE PRESENTED. IT WAS DEMONSTRATED THAT THE MEASUREMENT CAN BE MADE EASILY WITH A SMALL FOIL RESISTANCE STRAIN GAGE. THE NEAR TIP STRAIN CRITERION WAS COMPARED WITH BOTH CRACK SURFACE OPENING DISPLACEMENT AND J-INTEGRAL CRITERIA. /AUTHOR/

  • Corporate Authors:

    N/A

    ,   United States 
  • Authors:
    • Ke, J S
    • Liu, Han-Wen
  • Publication Date: 1973

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  • Accession Number: 00210022
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 27 2003 12:00AM