9 Questions
What is fatigue in structures?
A type of failure that occurs under repeatedly applied loads
What is the purpose of a fatigue test?
To test the durability of a material under cyclic loading
What type of cyclic loading is commonly used in testing?
Reversed stress cycle
What is the formula for mean stress (σm)?
$σm = (σmax + σmin) / 2$
What is the formula for stress amplitude (σa)?
$σa = (σmax - σmin) / 2$
What is the purpose of an S-N curve?
To determine the number of cycles to failure at a given stress amplitude
What type of fatigue tester is used for axial loading?
Axial Loading Fatigue Tester
What is the formula for stress range (σr)?
$σr = σmax - σmin$
What is the stress ratio (R) formula?
R = σmin / σmax
This quiz covers fatigue test, a type of failure in structures under repeated loads, and its characteristics, including cyclic loading and stress-time modes.
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