CYCLIC PLASTICITY AND LOW CYCLE FATIGUE LIFE IN VARIABLE AMPLITUDE LOADING

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Abstract

Abstract— Low cycle plastic stress‐strain response and fatigue life of low carbon steel in variable amplitude loading is investigated. Repeated block straining with defined probability distribution of strain peaks within a block was chosen. With the help of rain‐flow analysis of a strain block the cyclic hardening/softening curves as well as the service cyclic stress‐strain curves during random amplitude block loading were obtained. The relation between service stress‐strain curves and the basic stress‐strain curve was established. The fatigue life prediction based on the actual cyclic stress‐strain response and rain‐flow analysis was found to be in agreement with experimental results. Copyright © 1979, Wiley Blackwell. All rights reserved

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POLÁK, J., & KLESNIL, M. (1979). CYCLIC PLASTICITY AND LOW CYCLE FATIGUE LIFE IN VARIABLE AMPLITUDE LOADING. Fatigue & Fracture of Engineering Materials & Structures, 1(1), 123–133. https://doi.org/10.1111/j.1460-2695.1979.tb00371.x

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