Practice Maximum Principal Stress Theory (2) - Maximum principal stress theory

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the definition of principal stress?
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Think about how stress varies within a material.
Question 2.
What test is commonly used to find the critical value of stress?
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Consider what happens when we pull a material.
3Question 3.
What test is used to determine critical stress values?
- Impact Test
- Tensile Test
- Bending Test
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Think about what happens when we stretch a material.
4Question 4.
True or False: Principal stress refers to both maximum and minimum normal stresses.
- True
- False
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Reflect on the definition of principal stress.
Question 5.
Calculate the yield strength of a copper wire that fails under a tensile load of 2500N applied to 1.5mm in diameter.
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Convert diameter to radius and remember to calculate area correctly.
Question 6.
A solid cylindrical shaft with a diameter of 50mm transmits a torque of 500Nm. Calculate the maximum shear stress experienced by the shaft.
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Use the polar moment of inertia for a solid circular shaft in your calculations.

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