368223120-Tarea-Semana-5.docx

368223120-Tarea-Semana-5.docx - Ingeniería de los...

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Ingeniería de los Materiales Resistencia de los Materiales Instituto IACC
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Desarrollo 1) Observe la siguiente curva esfuerzo vs deformación de un material indeterminado: A continuación, realice lo siguiente: a) Identifique las partes de la curva señalados con las letras A , B , C y D , los siguientes hitos del esfuerzo-deformación: % deformación hasta la ruptura (%DR), resistencia a la tracción (RT), límite elástico (LS) y resistencia hasta la ruptura (RR), completando la siguiente tabla: % Deformación hasta la ruptura (% DR) 2,7 % Resistencia a la Tracción (RT) 920 MPa Límite Elástico (LS) 780 MPa Resistencia hasta la Ruptura (RR) 820 MPa A: Límite Elástico B: Resistencia a la Tracción C: Resistencia a la Ruptura
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D: Deformación hasta la Ruptura b) Calcule el módulo elástico ( E ) del material al 1% de deformación. Utilice los datos de la gráfica a esa deformación. E = σ e E = 600 MPa 1% E = 600 MPa 2) Una placa de aluminio de 0,5 cm de espesor debe soportar una fuerza de tracción de 50.000 N sin sufrir deformación plástica permanente. Si el esfuerzo de fluencia del aluminio utilizado es
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  • Fall '19
  • NoProfessor
  • Hierro, Fluencia, alumínio, Límite elástico, Módulo elástico

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