The Fatigue limit for steel is generally in the region of, compared to the static U.T.S
- 20%-40%.
- 60%-80%.
- 40%-60%.
Explanation
For most steels the fatigue (endurance) limit lies roughly at one-half of the static ultimate tensile strength, so the 40%-60% band is the accepted figure. The higher 60%-80% range overstates fatigue strength, which is why repeated-load design stresses are kept well below the static UTS.
kiptim1 asking:
the correct answer is 40%-60%.
This limiting stress is called the ‘Fatigue Limit’ and for steels, the fatigue limit is generally in the region of 40% to 60% of the value of the static ultimate tensile strength (UTS).
Extracted from KLM UK Engineering Notes for Module 6.
Community Comments (2)
D
dimky Posts: 514 01.08.2013 / 13:46
Hey kiptim.
Could you please send that book to info@part66online.com ?
Could you please send that book to info@part66online.com ?
J
JD2016 Posts: 54 04.09.2016 / 02:32
I would say that most Engineering Materials Science textbooks would say that the Fatigue Limit for steels is approx half the UTS. That would fit the 40 to 60% answer best.
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