Q. fatigue fracture is always initiated at (Solved)
1. discontinuity on the surface
2. dicontinuity in the center of a metal
3. without any discontinity in the metal
4. none of the above
- a. discontinuity on the surface
1. discontinuity on the surface
2. dicontinuity in the center of a metal
3. without any discontinity in the metal
4. none of the above