Numerical investigation of interference fit assemblies and the influence of varying the laminate thickness

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Abstract

For hybrid joints between CFRP drive shafts and metallic hubs the interference fit assembly (IFA) is a fibre suitable joining technique. To improve the analysis with an easy applicable analytical approach and give design recommendations both for thick-walled IFAs the influence of several mechanical and tribological phenomena as well as several design parameters need to be investigated. In a former study the assembly process has been investigated experimentally and the test specimens have been analysed with an analytical approach. In this study these test specimens are analysed with a rotationally symmetric numerical linear elastic model. The results are compared to the experimental and analytical values. The influence of the laminate's thickness on the contact pressure is numerically investigated within a parameter study. The numerical values deviate less from the experimental results than the analytical values. This deviation shows no dependency from the thickness of the parts. Increasing the outer 90°-layers' thickness influences the contact pressure less the thicker the parts are. A critical 90°-layers' thickness is determined, for which the contact pressure is almost constant for a varying thickness of the inner layers. The critical thickness depends on the angle of the balanced laminate and can be scaled with the corresponding scaling factor for scaled parts.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9783000533877
Publication statusPublished - 2016
Externally publishedYes
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 26 Jun 201630 Jun 2016

Publication series

NameECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
CountryGermany
CityMunich
Period26.06.201630.06.2016

Keywords

  • Composites
  • Hybrid joints
  • Interference fit assembly
  • Numerical analysis
  • Thick-walled

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