Reliability-based optimization of maintenance scheduling of mechanical components under fatigue

P. Beaurepaire; M. A. Valdebenito; G. I. Schuëller; H. A. Jensen

doi:10.1016/j.cma.2012.01.015

Reliability-based optimization of maintenance scheduling of mechanical components under fatigue

P. Beaurepaire, M. A. Valdebenito, G. I. Schuëller, H. A. Jensen

Faculty of Engineering and Science

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

This study presents the optimization of the maintenance scheduling of mechanical components under fatigue loading. The cracks of damaged structures may be detected during non-destructive inspection and subsequently repaired. Fatigue crack initiation and growth show inherent variability, and as well the outcome of inspection activities. The problem is addressed under the framework of reliability based optimization. The initiation and propagation of fatigue cracks are efficiently modeled using cohesive zone elements. The applicability of the method is demonstrated by a numerical example, which involves a plate with two holes subject to alternating stress.

Original language	English
Pages (from-to)	24-40
Number of pages	17
Journal	Computer Methods in Applied Mechanics and Engineering
Volume	221-222
DOIs	https://doi.org/10.1016/j.cma.2012.01.015
State	Published - 1 May 2012

Keywords

Cohesive zone element
Crack propagation
Optimal maintenance scheduling
Reliability-based optimization
Sensitivity

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title = "Reliability-based optimization of maintenance scheduling of mechanical components under fatigue",

abstract = "This study presents the optimization of the maintenance scheduling of mechanical components under fatigue loading. The cracks of damaged structures may be detected during non-destructive inspection and subsequently repaired. Fatigue crack initiation and growth show inherent variability, and as well the outcome of inspection activities. The problem is addressed under the framework of reliability based optimization. The initiation and propagation of fatigue cracks are efficiently modeled using cohesive zone elements. The applicability of the method is demonstrated by a numerical example, which involves a plate with two holes subject to alternating stress.",

keywords = "Cohesive zone element, Crack propagation, Optimal maintenance scheduling, Reliability-based optimization, Sensitivity",

author = "P. Beaurepaire and Valdebenito, {M. A.} and Schu{\"e}ller, {G. I.} and Jensen, {H. A.}",

note = "Funding Information: This research was partially supported by the Austrian Science Foundation (FWF) under Contract No. P20251-N13 and CONICYT (National Commission for Scientific and Technological Research) under Grant No. 1110061 , which is gratefully acknowledged by the authors. ",

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AU - Valdebenito, M. A.

AU - Schuëller, G. I.

AU - Jensen, H. A.

N1 - Funding Information: This research was partially supported by the Austrian Science Foundation (FWF) under Contract No. P20251-N13 and CONICYT (National Commission for Scientific and Technological Research) under Grant No. 1110061 , which is gratefully acknowledged by the authors.

PY - 2012/5/1

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N2 - This study presents the optimization of the maintenance scheduling of mechanical components under fatigue loading. The cracks of damaged structures may be detected during non-destructive inspection and subsequently repaired. Fatigue crack initiation and growth show inherent variability, and as well the outcome of inspection activities. The problem is addressed under the framework of reliability based optimization. The initiation and propagation of fatigue cracks are efficiently modeled using cohesive zone elements. The applicability of the method is demonstrated by a numerical example, which involves a plate with two holes subject to alternating stress.

AB - This study presents the optimization of the maintenance scheduling of mechanical components under fatigue loading. The cracks of damaged structures may be detected during non-destructive inspection and subsequently repaired. Fatigue crack initiation and growth show inherent variability, and as well the outcome of inspection activities. The problem is addressed under the framework of reliability based optimization. The initiation and propagation of fatigue cracks are efficiently modeled using cohesive zone elements. The applicability of the method is demonstrated by a numerical example, which involves a plate with two holes subject to alternating stress.

KW - Cohesive zone element

KW - Crack propagation

KW - Optimal maintenance scheduling

KW - Reliability-based optimization

KW - Sensitivity

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Reliability-based optimization of maintenance scheduling of mechanical components under fatigue

Abstract

Keywords

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