Mechanical Engineering - Fatigue Failure and Design Quiz
16 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What type of stress changes constantly in dynamic loads?

  • Bending stress
  • Compression stress
  • Tensile stress
  • Dynamic stress (correct)

Which test provides useful values for material selection and component dimensioning for statically loaded components?

  • Compression test
  • Cyclic stress test
  • Tensile test (correct)
  • Fatigue test

What type of stress can be both cyclic or random in dynamic loads?

  • Tensile stress
  • Compression stress
  • Bending stress
  • Dynamic stress (correct)

What type of failure may occur when components are subjected to dynamic loads?

<p>Fatigue failure (B)</p> Signup and view all the answers

What is the term used for the applied load on the material in service application not causing permanent deformation?

<p>Elastic deformation (A)</p> Signup and view all the answers

Which factor affects fatigue properties of materials?

<p>Dynamic loads (D)</p> Signup and view all the answers

What is the phenomenon known as when a material fails due to repeated loading and unloading, even at low loads?

<p>Fatigue failure (B)</p> Signup and view all the answers

Which type of stress cycle involves stress alternating from a maximum tensile stress to a minimum compressive stress of equal magnitude?

<p>Reversed stress cycle (B)</p> Signup and view all the answers

What type of stresses are necessary for fatigue failure to occur?

<p>Both tensile and compressive stresses (C)</p> Signup and view all the answers

In which type of load is the strength limit lower compared to static load?

<p>Dynamic load (D)</p> Signup and view all the answers

What is the nature of fatigue failure in normally ductile metals?

<p>Brittle (A)</p> Signup and view all the answers

What type of components or structures commonly experience fatigue failure?

<p>Aircraft and machine components (B)</p> Signup and view all the answers

What occurs by the initiation and propagation of cracks in fatigue failure?

<p>Material fracture (D)</p> Signup and view all the answers

Which type of stress is necessary for fatigue to occur in a material?

<p>Axial (tension-compression) stress (A)</p> Signup and view all the answers

What type of fracture surface is typically observed in fatigue failure?

<p>Perpendicular to the direction of applied tensile stress (C)</p> Signup and view all the answers

In which type of material fatigue occurs when repetitive stresses are below the yield strength?

<p>All materials (A)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser