Fatigue Cyclic Load Test of Materials
1. If the maximum and minimum stresses are 100 MPa and 0 MPa, then the R-ratio is:
2. Fatigue is a degradation of mechanical properties under
This is a Sample Question 2?
3. In low cycle fatigue, the components usually endure less than:
4. The mean stress for completely reversed cycle is:
5. Consider vertical machine for fatigue testing (like tensile testing). If the cross-sectional area of the sample is 10 mm2, maximum load is 1000 N and minimum load is 100 N, then the stress amplitude is:
6. Fatigue strength is the stress level corresponding to the number of cycles of: