A user-defined finite element to model the response of composite bolted joints under static loads

P. A. Sharos, C. T. McCarthy

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

Abstract

A highly efficient user-defined finite element for modelling the response of composite bolted joints was developed. The element is a result of a combined analytical/numerical approach and is capable of representing the full non-linear load displacement behaviour of the joint up to and including failure. The elastic response of the joint is a closed-form extension of a spring-based method where the bolts and laminates are represented by a series of springs and masses. A semi-empirical approach is used to model failure initiation and energy absorption in the joint and this has been successfully applied in models of single-bolt single-lap joints. A series of tapered and non-tapered, single-bolt, single-lap joints were tested with various layup orientations. These joints were modelled using the user-defined finite element and yielded excellent correlation with the experimental results.

Original languageEnglish
Title of host publicationECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Print)9788888785332
Publication statusPublished - 2012
Event15th European Conference on Composite Materials: Composites at Venice, ECCM 2012 - Venice, Italy
Duration: 24 Jun 201228 Jun 2012

Publication series

NameECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

Conference

Conference15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
Country/TerritoryItaly
CityVenice
Period24/06/1228/06/12

Keywords

  • Analytical model
  • Bolted joints
  • Efficient numerical analysis
  • Finite element analysis

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