Scatter of a ferritic steel in the transition region analyzed by Charpy tests and dynamic tensile tests

Several series of static and dynamic experiments with a German reactor pres sure vessel steel have been performed at different temperatures. Besides re sults of standardized compact tension tests and static and dynamic tensile tests, results of instrumented Charpy-V tests and of dynamically loaded not ched round bars are presented. In addition to the evaluation of J values th ese tests were analyzed numerically by means of a micromechanical damage mo del in order to finally determine the Weibull parameters of the Beremin mod el. However, not all of the results of the different series of tests are co nsistent, suggesting the need for modifications of the evaluation or the mo del to enable the application to arbitrary temperatures and loading conditi ons. (C) 1999 Elsevier Science S.A. All rights reserved.