Practice Maximum Normal Stress Theory (Rankine Theory) - 2.1 | Failure Theories | Machine Element and System Design
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens when the maximum principal stress exceeds the yield stress?

πŸ’‘ Hint: Remember the definition of yield stress.

Question 2

Easy

Name a type of material that is generally considered brittle.

πŸ’‘ Hint: Think of materials that don't stretch much.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

When does failure occur according to Rankine Theory?

  • When maximum shear stress exceeds yield strength
  • When maximum principal stress exceeds yield stress
  • When mean stress is zero

πŸ’‘ Hint: Focus on the concept of principal stress.

Question 2

True or False: Rankine Theory applies to ductile materials.

  • True
  • False

πŸ’‘ Hint: Consider the materials that deform before they fail.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A brittle material has a yield strength of 250 MPa. If a load is applied causing a maximum principal stress of 225 MPa, will the material fail? Explain your reasoning.

πŸ’‘ Hint: Compare the applied stress with the yield strength.

Question 2

A designer is creating a shaft that will be made from a brittle material with a yield strength of 400 MPa. They anticipate a maximum normal stress of 450 MPa during operation. What must the designer consider to prevent failure?

πŸ’‘ Hint: Think about the implications of exceeding yield strength.

Challenge and get performance evaluation