Journal Published Online: 01 May 1993
Volume 21, Issue 3

Introduction of a New Dynamic Fracture Toughness Evaluation System



Instrumented Charpy impact test has been widely used as a simple method for semi-empirically evaluating material impact toughness. The authors have developed a new instrumented Charpy impact testing system, which is called CAI (Computer Aided instrumented Charpy Impact testing) system. Using the CAI system, dynamic fracture toughness parameters such as Kd, Jd, Tmat, and various absorbed energies can be obtained from the load-deflection curve of a single precracked specimen for both ductile and brittle materials. It has been already put into practical use in Japan. This paper introduces the details of the toughness evaluation procedures in the CAI system.

Author Information

Kobayashi, T
Toyohashi University of Technology, Toyohashi, Japan
Yamamoto, I
Toyohashi University of Technology, Toyohashi, Japan
Niinomi, M
Toyohashi University of Technology, Toyohashi, Japan
Pages: 9
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: JTE11763J
ISSN: 0090-3973
DOI: 10.1520/JTE11763J