SYMPOSIA PAPER Published: 01 January 1998

Fracture Toughness Measurements in the Transition Regime Using Small Size Samples


The present paper reports the treatment of fracture toughness data in the ductile-to-brittle transition regime by using Charpy size specimens. Size effect and statistical variation are taken into account according to a statistical model associated to the weakest link model. The methodology is first calibrated on a reference reactor pressure vessel material, for which fracture toughness data obtained on large samples are available. This methodology is successfully applied to a number of RPV steels to determine the fracture toughness behaviour in the transition regime. Monte Carlo simulations are performed to determine the confidence interval of the reference temperature as derived from a small number of tests.

Author Information

Chaouadi, R
SCK∙CEN, Reactor Materials Research, Mol, Belgium
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E10
Pages: 214–237
DOI: 10.1520/STP37993S
ISBN-EB: 978-0-8031-5565-7
ISBN-13: 978-0-8031-2476-9