E3S Web of Conferences (Jan 2020)

Method for processing experimental strength data using statistical methods

  • Kasyanov Valeriy,
  • Kosenko Evgeny,
  • Kosenko Vera,
  • Krymsky Vasily

DOI
https://doi.org/10.1051/e3sconf/202015702019
Journal volume & issue
Vol. 157
p. 02019

Abstract

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The selective calculation method has been successfully applied for several centuries due to its profitability. However, when calculating the failure-freeness in the case of fatigue fractures (often sudden), when there is a significant power relationship m = 10-15 for the super-cycle loading region between the strength (hardness, endurance limit) and the effective voltage, the reduction of the minimum component life will be 10-100 or more times. This is due to the unaccounted main part of the population. In our example, there are 104 50 = 9950 units of such parts, i.e., their potential failures. Therefore, for this case, the selective method is an intermediate stage of calculations.