2. Stress Analysis and Failure

Crack Propagation Ideas — Quiz

Test your understanding of crack propagation ideas with 5 practice questions.

Practice Questions

Question 1

In crack propagation ideas, what is the localized rise in stress at the tip of a crack called?

Question 2

What is the gradual extension of an existing crack under repeated loading called?

Question 3

Which material property is the critical resistance to crack growth when $K$ becomes too high?

Question 4

If the crack length $a$ increases while loading stays the same, what usually happens to the crack-driving force?

Question 5

In a simple tension-loaded structure, a crack usually grows in what direction relative to the maximum tensile stress?