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Analysis of adhesively bonded joints: an asymptotic approach
Linköping University, Department of Management and Engineering, Mechanics. Linköping University, The Institute of Technology.
2001 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Simulations using the Finite Element Method (FEM) play an increasingly important role in the design process of joints and fasteners in the aerospace industry. In order to utilize the potential of using adhesive bonding, there is an increasing need for effective and accurate computational methods. The geometry and the nature of an adhesive joint is, however, not so simple to describe effectively using regular FEM-codes. The main reason is that the very thin and soft adhesive layer must be modelled by a large number of FEM-elements in the thickness direction to achieve sufficiently accurate calculations. To overcome this difficulty, special FEM-elements can be developed that provides a material surface treatment of the adhesive and the joined parts. In order to create a model that reflects the above features one may introduce proper scalings on the geometry and on the material properties in terms of a perturbation parameter. Within the framework of three-dimensional elasticity, together with an asymptotic expansion method, a material surface model is obtained through a systematic procedure of derivation. In such derivation no a priori assumptions on the displacements or stress fields are needed. The final result is a variational equation posed over a single reference surface, which forms the basis of a structural element for the compound joint.

Place, publisher, year, edition, pages
Linköping: Linköpings Universitet , 2001. , 57 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 925
Keyword [en]
Adhesive Joints, Asymptotic Expansion
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-45300Local ID: LiU-TEK-LIC:2001:62ISBN: 91-7373-245-1 (print)OAI: oai:DiVA.org:liu-45300DiVA: diva2:266162
Presentation
(English)
Opponent
Supervisors
Projects
NFFP-Project 372 Adhesive Bonding in Metal Aircraft Structures (ABIMAS)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-05-15

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Schmidt, Peter

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf