Investigating mechanical performances of double lap composite joint with stepwise patch

Jia-Lin Tsai*, Wen Yen Chuang

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

An adhesive-bonded double-lap composites joint with stepwise attachments was proposed and investigated experimentally and numerically in this study. For the conventional double lap joint (DLJ), the high shear stress and peer stress taking place in the adhesive layer near the patch termination significantly influenced the joint strength. In order to diminish the amount of the stresses, a new design of stepwise patch was introduced in the fabrication of the double-lap joint. Based on the finite element stress analysis (FEA), it was found that both shear stress and peer stress within the adhesive layer was reduced appreciably by the employment of the stepwise attachment. In addition, experimental results illustrated that the double lap joint with stepwise patch exhibited superior joint strength than the conventional double lap joints.

Original languageEnglish
StatePublished - 1 Jan 2013
Event13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 - Sapporo, Japan
Duration: 11 Sep 201313 Sep 2013

Conference

Conference13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
CountryJapan
CitySapporo
Period11/09/1313/09/13

Keywords

  • Composites
  • Finite element stress analysis
  • Joint design

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