Fatigue performance measure of materials Identify the standard property used to indicate resistance to fatigue failure under cyclic loading. Choose the correct option.
Mechanical Engineering
Machine Design
Difficulty: Easy
Choose an option
-
AElastic limit
-
BYoung's modulus
-
CUltimate tensile strength
-
DEndurance limit
Answer
Correct Answer: Endurance limit
Explanation
ConceptThe endurance limit (or fatigue limit) is the stress amplitude below which a material can theoretically endure an infinite number of cycles without failure (for some ferrous alloys). It is the standard measure of fatigue resistance.
Why others are incorrectElastic limit and E relate to elastic behavior; UTS measures monotonic strength, not endurance under cyclic loads.
Final AnswerEndurance limit