Proceedings of the Royal Society of London Series A Containing Papers of a Mathematical and Physical Character · 1923 · 94 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsMetallurgyAlloysFailure TheoriesFatigueFracture MechanicsMetalsStrength Of MaterialsCleavage PlanesFatigue BehaviorFatigue FailureFatigue Failure TheoryFatigue TestingMetal FatigueMetal Fatigue BehaviorWrought Alloys
Abstract The need for some theory to explain the mechanism of fatigue failure and the many curious phenomena which have been observed in connection with it has long been felt. The theory described in this paper appears to offer a reasonable explanation of most of the principal phenomena observed when wrought iron, steel, nickel, copper and some other metals are tested; and it has the merit of being extremely simple. How far it is applicable to other metals has not yet been investigated. In this theory the following assumptions are made:— (1) A metal test piece is made up of crystals with their cleavage planes (along which they slip when over-stressed) oriented relatively to the axis of the test piece in many different directions.