UKM Tuticorin

Tag: #stressraisers

  • EK Motor Oct 2023 (Q8)

    EK Motor Oct 2023 (Q8)

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    UKM TUTICORIN
    in

    (a) With the aid of sketches, explain the term “fatigue” as applicable to engineering components. State what is meant by the term “fatigue limit”. (12) (b) Explain the term “stress raiser” with respect to fatigue, giving THREE examples and stating how stress raisers reduce the fatigue life of a component. (4) Oct 2023 (Q8)

  • EK Motor Jul 2023 (Q6)

    EK Motor Jul 2023 (Q6)

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    UKM TUTICORIN
    in

    With reference to fatigue of engineering components: (a) Draw an S/N curve for steel, showing the Fatigue Limit and two representative stress-cycle conditions on the graph (4) (b) Explain how a component is designed to avoid fatigue failure, using the S/N curve drawn in part (a) (4) (c) Explain how poor maintenance and incorrect machinery…

  • EK Motor Oct 2019 (Q1)

    EK Motor Oct 2019 (Q1)

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    by

    UKM TUTICORIN
    in

    With reference to fatigue cracking: (a) describe, with the aid of an S/N curve, the relationship between applied stress and the number of applied stress fluctuations in fatigue crack propagation (5) (b) Define the term Stress Raiser, giving examples and explaining the influence of a stress raiser on the propagation of a fatigue crack (5)…