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A durability model incorporating safe life methodology and damage tolerance approach to assess first inspection and maintenance period for structures

Record type: Article

This paper outlines a new durability model to assess the first inspection and maintenance period for structures. Practical scatter factor formulae are presented to determine the safe fatigue crack initiation and propagation lives from the results of a single full-scale test of a complete structure. New theoretical solutions are proposed to determine the sa?sm?N surfaces of fatigue crack initiation and propagation. Prediction techniques are then developed to establish the relationship equation between safe fatigue crack initiation and propagation lives with a specific reliability level using a two-stage fatigue damage cumulative rule. A new durability model incorporating safe life and damage tolerance design approaches is derived to assess the first inspection and maintenance period. Finally, the proposed models are applied to assess the first inspection and maintenance period of a fastening structure at the root of helicopter blade.

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Citation

Xiong, J.J. and Shenoi, R.A. (2009) A durability model incorporating safe life methodology and damage tolerance approach to assess first inspection and maintenance period for structures Journal of Reliability Engineering and System Safety, 94, (8), pp. 1251-1258. (doi:10.1016/j.ress.2009.01.005).

More information

Published date: August 2009
Keywords: durability, safe life, damage tolerance, first inspection and maintenance period, reliability level
Organisations: Engineering Mats & Surface Engineerg Gp, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 66400
URI: http://eprints.soton.ac.uk/id/eprint/66400
ISSN: 0951-8320
PURE UUID: 9bfadea4-d56d-461e-bea2-cf577cb3d356

Catalogue record

Date deposited: 11 Jun 2009
Last modified: 19 Jul 2017 00:24

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