Exploring Shear Strength

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Questions and Answers

Which of the following statements is true about the shear strength of real materials compared to theoretical values?

  • Real materials have higher shear strength than theoretical values.
  • Real materials have lower shear strength than theoretical values. (correct)
  • Real materials have unpredictable shear strength compared to theoretical values.
  • Real materials have the same shear strength as theoretical values.

What is the equation to calculate the theoretical shear strength ($\tau_{max}$) for real materials in idealistic situations?

  • $\tau_{max} = \frac{Gb}{2\pi a}$ (correct)
  • $\tau_{max} = \frac{2\pi a}{Gb}$
  • $\tau_{max} = Gb + 2\pi a$
  • $\tau_{max} = Gb \times 2\pi a$

What is the relationship between interatomic spacing and interplanar spacing?

  • They are inversely proportional.
  • They are approximately the same. (correct)
  • They are unrelated.
  • They are exactly the same.

What is the approximate order of magnitude of the theoretical shear strength for copper and iron?

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

Can the shear strength of real materials be accurately calculated using the given elastic modulus and shear modulus?

<p>No, it cannot be accurately calculated. (D)</p> Signup and view all the answers

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