DYNAMIC FRACTURE TOUGHNESS DETERMINED FROM INSTRUMENTED PRE-CRACKED CHARPY TESTS

The use of an instrumented impact hammer on pre-cracked Charpy V-notch specimens led to a reliable and inexpensive method for determining dynamic fracture toughness. Measurements were made on A-533, Grade B, Class 1 steel from -125F to +75F. The data were found to be in excellent agreement with those obtained by other workers on much larger specimens. Similar tests were run with standard Charpy V-notch specimens to determine dynamic tensile yield strength values. A comparison of the dynamic yield and toughness values suggests a meaningful technique for estimating the NDT temperature, which should be of practical value in nuclear reactor surveillance programs.

• Corporate Authors:

  University of California, Los Angeles

  School of Architecture and Urban Planning
  Los Angeles, CA  United States  90024
• Authors:
  • Server, W L
• Publication Date: 1972-8

Media Info

• Pagination: 106 p.

Subject/Index Terms

• TRT Terms: Crash tests; Dynamic loads; Fracture mechanics; Notch tests; Notching (Cutting); Strength of materials
• Old TRIS Terms: Notch toughness
• Subject Areas: Marine Transportation; Materials; Research;

Filing Info

• Accession Number: 00041751
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: AROD-8016:7-MC Tech Rpt
• Contract Numbers: DAHC04-69-C-0008
• Files: TRIS
• Created Date: Mar 19 1973 12:00AM