Subject: Machine Design -I

Topic: Basic properties of Machine design and theories of failure

Difficulty: Medium

Fatigue cycles:

There are two regions of this S-N curve namely

a) Low-cycle fatigue and

b) High-cycle fatigue.

The difference between these two fatigue failures is as follows:

1. Any fatigue failure when the number of stress cycles are less than 1000, is called low-cycle fatigue. Any fatigue failure when the …