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Public Article
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    Determinación de las tensiones por elementos finitos de un tornillo de acero microaleado AISI 4140

     
     
         
    ISSN: 2306 - 823X

    Publisher: author   

Determinación de las tensiones por elementos finitos de un tornillo de acero microaleado AISI 4140
Indexed in Technology and Engineering
ARTICLE-FACTOR
 1.3
Article Basics Score: 2
Article Transparency Score: 2
Article Operation Score: 3
Article Articles Score: 3
Article Accessibility Score: 3
Article Problems
Under Evaluation
article Flaws Reduces Credit

SUBMIT PAPER ASK QUESTION
International Category Code (ICC):
ICC-1802
Publisher: Universidad De Moa
Authors: Roxana Pupo-Matos, Felix Reinier Muñoz-Dranguet, Andier Samiñón-Durán, Elís E. Guzmán-Romero
International Journal Address (IAA):
IAA.ZONE/230641443823X
eISSN : 2306 - 823X VALID ISSN Validator
Abstract Se determinó el comportamiento a la fatiga en un tornillo de acero micro aleado AISI 4140 empleado en la culata del motor de combustión interna MAN B&W a través del Método de los Elementos Finitos. A partir de tamaño crítico de grietas de 4,2; 6,2; 8,1 y 21,6 se estableció la metodología de cálculo donde se consideró la carga distribuida de contacto y de rozamiento, las solicitaciones, el esfuerzo normal y el de corte, para determinar el fenómeno de la fractura en el tornillo. Se comprobó que la falla por fatiga del tornillo inicia con tensiones de Von Misses mínimas de 401,8 MPa; las cuales se incrementan hasta un valor máximo de 1 796 MPa; provocando la falla por fractura en los primeros filetes de rosca. La carga aplicada de 2 369 149,4 N; genera un esfuerzo cortante máximo de 104,55 Nm2, siendo este el pico máximo de resistencia antes que se produzca el fallo por fractura y que al ejercer una fuerza de 297 918,52 N; inicia un camb...
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