Compliance calibration of the short rod chevron-notch specimen for fracture toughness testing of brittle materials

✍ Scribed by R. T. Bubsey; D. Munz; W. S. Pierce; J. L. Shannon

• Publisher: Springer Netherlands
• Year: 1982
• Tongue: English
• Weight: 655 KB
• Volume: 18
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00019637

✦ Synopsis

The short rod chevron-notch specimen has the advantages of (1) crack development at the chevron tip during the early stage of test loading and (2) convenient calculation of Ktc from the maximum test load and a calibration factor which depends only on the specimen geometry and manner of loading. For generalized application, calibration of the specimen over a range of specimen proportions and chevron-notch configurations is necessary. Such was the objective of this investigation, wherein calibration of the short rod specimen was made by means of experimental compliance measurements converted into dimensionless stress intensity factor coefficients.