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[en] A numeric solution is presented for the problem of unsteady creep under long-term heat loading as applied to plane and axisymmetric structures having different stress concentrators and crack-type defects. Numerical integration of nonlinear constitutive equations is performed through the step procedure by means of finite-element discretization of the domain with a method of initial deformations and flow theory applied. Examples of calculation for the 08Kh18N10T steel and Zr-2.5% N alloy are given
Journal
Problemy Prochnosti; ISSN 0556-171X; 
; (no.2); p. 10-13
; (no.2); p. 10-13
No abstract available
Source
Federal'noe Agentstvo po Atomnoj Ehnergii, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Opytnoe Konstruktorskoe Byuro GIDROPRESS, Podol'sk, Moskovskaya Obl. (Russian Federation); 121 p; ISBN 978-5-94883-072-8; ; 2007; p. 102-103; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
; 2007; p. 102-103; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
No abstract available
Source
Federal'noe Agentstvo po Atomnoj Ehnergii, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Opytnoe Konstruktorskoe Byuro GIDROPRESS, Podol'sk, Moskovskaya Obl. (Russian Federation); 121 p; ISBN 978-5-94883-072-8; ; 2007; p. 81-82; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
; 2007; p. 81-82; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
No abstract available
Source
Gosudarstvennaya Korporatsiya po Atomnoj Ehnergii Rosatom, Moscow (Russian Federation); OAO Gosudarstvennyj Nauchnyj Tsentr - Nauchno-Issledovatel'skij Inst. Atomnykh Reaktorov, Dimitrovgrad (Russian Federation); 203 p; ISBN 978-5-94831-106-7; ; 2009; p. 9-10; 9. Russian conference on reactor materials; IX Rossijskaya konferentsiya po reaktornomu materialovedeniyu; Dimitrovgrad (Russian Federation); 14-18 Sep 2009; 1 tab.
; 2009; p. 9-10; 9. Russian conference on reactor materials; IX Rossijskaya konferentsiya po reaktornomu materialovedeniyu; Dimitrovgrad (Russian Federation); 14-18 Sep 2009; 1 tab.
No abstract available
Source
Ministerstvo Rossijskoj Federatsii po Atomnoj Ehnergii, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Gosudarstvennyj Nauchnyj Tsentr Rossijskoj Federatsii - Nauchno-Issledovatel'skij Institut Atomnykh Reaktorov, Dimitrovgrad (Russian Federation); 424 p; ISBN 5-94831-020-5; ; 2003; p. 33-34, 35-36; 7. Russian conference on reactor material science; VII Rossijskaya konferentsiya po reaktornomu materialovedeniyu; Dimitrovgrad (Russian Federation); 8-12 Sep 2003
; 2003; p. 33-34, 35-36; 7. Russian conference on reactor material science; VII Rossijskaya konferentsiya po reaktornomu materialovedeniyu; Dimitrovgrad (Russian Federation); 8-12 Sep 2003
[en] A probability of crack occurrence in E&P components of WWER-1000/1200 reactor plant, referring to safety classes 1 and 2, is insignificant with absence of corrosion. Nevertheless, according to the valid regulatory documents, when the cyclic damage ability reaches a value less than 1 it means that there is a postulated small crack in a component. Within the frame of SAKOR a cyclic crack extension is considered that were revealed by NDT. The calculated extension of postulated cracks and those revealed by NDT is an important control function for making the solutions on the scope and interval of inspection of both the base metal, and weld metal
[ru]
Вероятность появления трещин в компонентах ОиТ РУ ВВЭР-1000/1200, относящихся к 1 и 2 классам безопасности, при отсутствии коррозии незначительна. Тем не менее, в соответствие с существующими нормативными документами при достижении циклической повреждаемости некоторого значения меньше 1 означает присутствие в компоненте постулируемой малой трещины. Однозначно в рамках САКОР рассматривается циклический рост трещин, выявленных по результатам НМК. Расчетный рост постулируемых и обнаруженных НМК трещин служит важной управляющей функцией для принятия решений по объему и периодичности контроля как основного металла, так и металла сварных соединенийSource
International Atomic Energy Agency, Vienna (International Atomic Energy Agency (IAEA)); Gosudarstvennaya Korporatsiya po Atomnoj Ehnergii Rosatom, Moscow (Russian Federation); AO Atomehnergomash, Moscow (Russian Federation); AO Kontsern Rosehnergoatom, Moscow (Russian Federation); AO Atomehnergoproekt, Moscow (Russian Federation); AO ATOMPROEKT, Sankt-Peterburg (Russian Federation); AO TVEhL, Moscow (Russian Federation); NITs Kurchatovskij Inst., Moscow (Russian Federation); AO OKB GIDROPRESS, Podol'sk (Russian Federation); vp; ISBN 978-5-94883-138-1; ; 2015; vp; 9. International scientific and technical conference on safety assurance of NPP with WWER; 9-ya mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk (Russian Federation); 19-22 May 2015
; 2015; vp; 9. International scientific and technical conference on safety assurance of NPP with WWER; 9-ya mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk (Russian Federation); 19-22 May 2015
[en] One investigates into fuel effect on fuel element can deformation and on interaction between shell and cells of grid spacers. The efforts are undertaken in terms of an axisymmetrically placed fuel element with regard to the nonlinear contact phenomena and the nonlinear dependence of UO2 swelling deformation on fluence and temperature. The ANSYS 7.1 finite-element program is used to carry out calculations
[ru]
Исследуется влияние топлива на деформацию оболочки твэла и взаимодействие между оболочкой и ячейками дистанционирующих решеток. Задача рассматривается для отдельного твэла в осесимметричной постановке с учетом нелинейных контактных явлений и нелинейной зависимости деформации распухания UO2 от флюенса и температуры. Для расчетов используется конечноэлементная программа ANSYS 7.1Source
Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Nauchno-Issledovatel'skij Inst. Ehnergotekhniki imeni N.A. Dollezhalya, Moscow (Russian Federation); Inzhenernyj Tsentr Prochnosti, Nadezhnosti i Resursa Oborudovaniya Atomnoj Tekhniki (ITsP MAEh), Moscow (Russian Federation); 187 p; ISBN 5-98706-013-3; ; 2005; p. 96-102; 3. Russian conference Methods and software of strength calculations; Tret'ya Rossijskaya konferentsiya Metody i programmnoe obespechenie raschetov na prochnost'; Tuapse, Krasnodarskij Kraj (Russian Federation); 4-9 Oct 2004; 4 refs., 9 figs.
; 2005; p. 96-102; 3. Russian conference Methods and software of strength calculations; Tret'ya Rossijskaya konferentsiya Metody i programmnoe obespechenie raschetov na prochnost'; Tuapse, Krasnodarskij Kraj (Russian Federation); 4-9 Oct 2004; 4 refs., 9 figs.
No abstract available
Source
Federal'noe Agentstvo po Atomnoj Ehnergii, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Opytnoe Konstruktorskoe Byuro GIDROPRESS, Podol'sk, Moskovskaya Obl. (Russian Federation); 121 p; ISBN 978-5-94883-072-8; ; 2007; p. 59; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
; 2007; p. 59; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
No abstract available
Source
Federal'noe Agentstvo po Atomnoj Ehnergii, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Unitarnoe Predpriyatie Opytnoe Konstruktorskoe Byuro GIDROPRESS, Podol'sk, Moskovskaya Obl. (Russian Federation); 121 p; ISBN 978-5-94883-072-8; ; 2007; p. 37-38; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
; 2007; p. 37-38; 5. International scientific and technical conference Safety assurance for NPP with WWER; 5-ya Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya Obespechenie bezopasnosti AEhS s VVEhR; Podol'sk, Moskovskaya Obl. (Russian Federation); 29 May - 1 Jun 2007
[en] Calculation of stress intensity factor for subfused and surface semi-elliptical cracks in the zone of branch pipe joining with the WWER-440 vessel under conditions of maximum credible accident is discussed. The coefficient obtained by the method of crack virtual growth and asymptotic displacement method is compared with that determined on the bases of the influence functions for subfused and surface cracks in a plate
Journal
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