Effect of laminate tapering on strain distribution in adhesive joints: an experimental investigation
Paper in proceedings, 2009

One major problem when using FRP laminates to strengthen and repair structural members is the concentration of stresses in an area close to the end of the laminate which might govern the failure of the joint. One method that has been suggested to reduce the stress concentration in this area is to taper the end of the laminate. Strain distribution in adhesive joints with untapered and normal-tapered laminates has been investigated using experimental method. An optic measurement system, ARAMIS, was used to monitor the strain field in the adhesive layer. The results indicated that normal tapering of the laminate did not affect the shear and principal strain components, while it increased the maximum peeling strain in the joint for the tapering length examined in this study.

Shear

Adhesive joint

Peeling

Normal-tapered

Untapered

Strain distribution

Author

Reza Haghani Dogaheh

Chalmers, Civil and Environmental Engineering, Structural Engineering

Mohammad Al-Emrani

Chalmers, Civil and Environmental Engineering, Structural Engineering

Robert Kliger

Chalmers, Civil and Environmental Engineering, Structural Engineering

Proceedings of the 7th International Conferene on Composite Science and Technology, Sharjah, UAE

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Building Technologies

More information

Created

10/6/2017