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Wiley InterScience | ||||||||||
  Fatigue & Fracture of Engineering Materials & StructuresVolume 3 Issue 2, Pages 113 - 128 Published Online: 2 Apr 2007 © 2010 Blackwell Publishing Ltd.
Abstract | References | Full Text: PDF (Size: 856K) | Related Articles | Citation Tracking  ESTIMATION OF THE FATIGUE LIMIT BY PROGRESSIVELY-INCREASING LOAD TESTS Copyright 1980 Fatigue of Engineering Materials Ltd. ABSTRACT
Abstract—On the basis of fatigue data derived from a large number of experiments, the load progression methods of Locati and Prot as well as a method operating on a thermometric basis have been comparatively evaluated in an experimental and analytical (statistical) study. The last-named thermo-method can provide useful estimates for a fatigue limit corresponding with ca. 0 to 5% probability of fracture with only 1 to 3 experiments. The Prot-method, set up and evaluated in a certain way, provides a useful estimate of the fatigue limit and, additionally, an approximate indication of the width of the transition range of the corresponding Wöhler-type tests after experiments on not less than about ten specimens. The load progression, contrary to the original Prot-concept, must not necessarily be applied in a continuous mode, but can occur stepwise with increments Δσ smaller than ca. 15 Nm (Received 23 March 1980) | 
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