Kui pildistamise protsessi polnud mingitel põhjustel võimalik sekkuda, siis järgmiseks otsitakse põhjust hävitada juba salvestatud materjal. Suurus: px.
Noviello, L. Later, in the yearseven European firms have begun to develop the European Utilities Requirements.
This development is justified by the fact that the lessons learned by Parimad raamatud FX Variants nuclear power plants designs programs of the years can be incorporated and the European specific conditions can be taken into consideration. Thus, ineight European firms - Westinghouse and their industrial partners - have decided to launch a multiphase program in order to check the AP compliance with the European Utilities Requirements EUR and to develop the required alterations.
In this phase, the main important objectives have been reached. This methodology should minimize over-conservatism while properly accounting for localized defects and stress risers. To support the implementation of the proposed methodology and to verify the applicability of the code rules, analytical studies and evaluation of thermomechanical test results continued in FY This report presents the results of those studies.
An EPP strain limits methodology assessment was based on recent two-bar thermal ratcheting test results on H stainless steel in the temperature range of to C. Strain range predictions from the EPP evaluation of the two-bar tests were also evaluated and compared with the experimental results. The role of sustained primary loading on cyclic life was assessed using the results of pressurized SMT data from tests on Alloy at C. A viscoplastic material model was used in an analytic simulation of two-bar tests to compare with EPP strain limits assessments using isochronous stress strain curves that are consistent with the viscoplastic material model.
A theoretical treatment of a recurring issue with convergence criteria for plastic shakedown illustrated the role of computer machine precision in EPP calculations.