SYMPOSIA PAPER Published: 01 January 1977
STP35555S

Experimental Verification of the and Equivalent Energy Methods for the Evaluation of the Fracture Toughness of Steels

Source

The critical value JIc and the apparent fracture toughness KBd are measured with a single small specimen (compact tension or three-point-bend bar) loaded in the elastic-plastic range. Initiation is detected during loading by an electrical potential method.

For the steels studied here (2.25Cr-1Mo, electroslag weld, manganese cast steel), the KIc values deduced from JIc are in agreement with the KIc values directly measured with thick specimens in the transition-temperature range. Furthermore, the equivalent energy procedure gives the same results as those obtained by the J-integral method.

Author Information

Marandet, B
Institut de Recherches de la Sidérurgie Francaise, Saint Germain en Laye, France
Sanz, G
Institut de Recherches de la Sidérurgie Francaise, Saint Germain en Laye, France
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Details
Developed by Committee: E08
Pages: 462–476
DOI: 10.1520/STP35555S
ISBN-EB: 978-0-8031-4703-4
ISBN-13: 978-0-8031-0356-6