Title: Modelling expected service usage from short-term loading measurements

Authors: Darrell Socie

Addresses: Mechanical Engineering Department, University of Illinois at Urbana-Champaign, 1206 West Green Street, Urbana, IL 61801, USA

Abstract: A methodology for estimating the long term durability of structures from short-term service loads measurements is described. The measured time history is converted into a rainflow counted histogram. A statistical technique for determining the probability density of the rainflow histogram is employed to extrapolate the short-term measured usage to the expected long-term service usage. A new loading history is then reconstructed from the expected rainflow histogram and combined with fatigue analysis to obtain an estimate of the durability of a structure.

Keywords: durability; extrapolation; fatigue; rainflow; variability.

DOI: 10.1504/IJMPT.2001.001272

International Journal of Materials and Product Technology, 2001 Vol.16 No.4/5, pp.295-303

Published online: 01 Jul 2003 *

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