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.
journal_name
Comput Methods Appl Mech Engjournal_title
Computer methods in applied mechanics and engineeringauthors
Beaurepaire P,Valdebenito MA,Schuëller GI,Jensen HAdoi
10.1016/j.cma.2012.01.015keywords:
["Cohesive zone element","Crack propagation","Optimal maintenance scheduling","Reliability-based optimization","Sensitivity"]subject
Has Abstractpub_date
2012-05-01 00:00:00pages
24-40issue
Ceissn
0045-7825issn
1879-2138pii
CMA9632journal_volume
221-222pub_type
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