Reliability and Sensitivity Analyses of Scarf-Repaired Composites Using Surrogate Model

Jiamu He, Le Chang, Fei Xu, Wei Feng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Adhesively bonded techniques have been widely used to repair composite components in aircraft structures. However, large variations in bonded strength may occur due to variability of the manufacturing processes, which has impeded their further applications. In this present work, a Kriging surrogate model was established to predict the failure strength of scarf-repaired composites. Based on the validated Kriging model, the failure probability of scarf-repaired composites considering the uncertainties of adhesive properties was evaluated. Furthermore, the variance based global sensitivity analysis was performed to determine the influences of different adhesive properties on the failure strength of scarf-repaired structures. The importance order of different properties was given to provide guidance for structural design.

Original languageEnglish
Title of host publicationProceedings of the 7th China Aeronautical Science and Technology Conference - Volume II
PublisherSpringer Science and Business Media Deutschland GmbH
Pages523-534
Number of pages12
ISBN (Print)9789819797646
DOIs
StatePublished - 2025
Event7th China Aeronautical Science and Technology Conference, CASTC 2024 - Chengdu, China
Duration: 19 Sep 202421 Sep 2024

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference7th China Aeronautical Science and Technology Conference, CASTC 2024
Country/TerritoryChina
CityChengdu
Period19/09/2421/09/24

Keywords

  • Adhesive
  • Reliability
  • Scarf repair
  • Sensitivity
  • Uncertain

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