DROP-WEIGHT TEAR TEST. EFFECT OF VARIABLES ON TEST RESULTS

Variables studied in this evaluation of the Battelle type drop-weight tear test (DWTT) include operator, test machine, specimen thickness, notch type, and strength level of the material tested. Operator and machine variations were found to be small. For a given material, increasing the specimen thickness raises the plateau energy and the transition temperature. Energy at a given percent shear is proportional to thickness. Notches examined include pressed notch, machined notch, fatigue crack, and crack starter weld. Continued use of the pressed notch is recommended. Side grooved DWTT specimen is used to compare the toughness of heat affected zones of welded specimens to that of the base metal.

  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Heberling, T G
    • Selby, G E
  • Publication Date: 1970-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00019181
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Spec Tech Publ 466
  • Files: TRIS
  • Created Date: Nov 8 1973 12:00AM