Rosa, E. da; Costa Machado Leal, L. da
Proceedings of the Conference on Structural Analysis, Design and Construction in Nuclear Power Plants1978
Proceedings of the Conference on Structural Analysis, Design and Construction in Nuclear Power Plants1978
AbstractAbstract
[en] A review of the different aspects of approaches to the fatigue problems since the Woehler curves till the crack propagation is presented. The interrelationship among each one of the aspects is then carried out as well as the relation of the aspects to the different fatigue phases, since the crack nucleation till the final rupture in an attempt to unify the design procedure. (Author)
Original Title
Uma apreciacao critica sobre o problema da fadiga
Primary Subject
Source
Rio Grande do Sul Univ., Porto Alegre (Brazil). Pos-graduacao em Engenharia Civil; 1216 p; 1978; v. 1, p. 55-74; Conference on Structural Analysis, Design and Construction in Nuclear Power Plants; Porto Alegre, Brazil; 18 - 20 Apr 1978
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Rosa, E. da; Bento Filho, A.; Barcellos, C.S. de
Proceedings of the 2. Brazilian Symposium on Pipes and Pressure Vessels. V. 1, 21982
Proceedings of the 2. Brazilian Symposium on Pipes and Pressure Vessels. V. 1, 21982
AbstractAbstract
[en] An analysis of the wear in PWR heat exchanger tubes is described. The results obtained show that the proposed model was adequate to the actual situation predicting a wear life for the tube smaller than those predicted by the models commonly used. Some comments on the wear phenomenon, its non-linear characteristics and the uncertainty degree of the project are made. (E.G.)
[pt]
Descreve-se uma analise do desgate adesivo de tubos de trocadores de calor de centrais nucleares do tipo PWR. Os resultados obtidos mostram uma boa adequacao do modelo proposto a situacao real, prevendo uma vida de desgaste para o tubo bem menor que os previstos pelos modelos comumente empregados. Faz-se alguns comentarios sobre o fenomeno de adesao, suas caracteristicas nao lineares e o grau de incerteza dos parametros do projeto. (E.G.)Original Title
Uma analise do desgaste em tubos de trocadores de calor
Primary Subject
Source
Galeao, A.C.N.R. (Laboratorio de Computacao Cientifica, Rio de Janeiro (Brazil)); Bevilacqua, L. (Pontificia Univ. Catolica do Rio de Janeiro (Brazil)); Monteiro, S.N. (Rio de Janeiro Univ. (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia); 643 p; 1982; p. 109-122; 2. Brazilian Symposium on Pipes and Pressure Vessels; Salvador, BA (Brazil); 24-26 Nov 1982
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Rosa, E. da; Bento Filho, A.; Barcellos, C.S. de
Proceedings of the 7. Brazilian Congress on Mechanical Engineering. v. A1983
Proceedings of the 7. Brazilian Congress on Mechanical Engineering. v. A1983
AbstractAbstract
[en] An analysis on the adhesive wear of heat exchangers tubes of PWR electric power plants is presented. The obtained results show that the proposed model is adequate, since the predicted tube wear life reasonably matches the recorded tube failure life. Some comments about the phenomenon are presented, in special their non linear characteristics and the uncertainty on the appropriate values of relevant design parameters. (Author)
[pt]
Descreve-se uma analise do desgate adesivo de tubos de trocadores de centrais nucleares do tipo PWR. Os resultados obtidos mostram uma boa adequacao do modelo proposto a situacao real, prevendo uma vida de desgaste para o tubo compativel com os resultados experimentais verificados com a operacao de centrais nucleares do tipo citado. Finalmente sao apresentados comentarios acerca do fenomeno, suas caracteristicas nao lineares e a grande incerteza acerca de parametros relevantes de projeto. (Autor)Original Title
Uma analise do degaste em tubos de trocadores de calor
Primary Subject
Source
Universidade Federal de Uberlandia (Brazil). Dept. de Engenharia Mecanica; 615 p; 1983; v. A p. 151-159; 7. Brazilian Congress on Mechanical Engineering; Uberlandia, MG (Brazil); 13-16 Dec 1983
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