Experimental and Theoretical Investigation of Galvanized Steel and Fiber-Reinforced Polymer Composites Textile Adhesive Double Lap Joints

Abstract

This paper presents an experimental analysis of CFRP fabric to galvanized steel adhesive connection. An experimental research has been conducted on the adhesive connection between CFRP fabric and galvanized steel subjected to shear forces. The specimens were made from the steel plates overlapped on both sides with SikaWrap 230 C fabric using SikaDur 330 adhesive. Observations of natures of failure for CFRP-Steel adhesive connection were conducted based on visual inspection using a scanning microscope. Mixed nature of the connection failure was specified. Moreover, an advanced numerical model has been developed and later on validated and verified on the basis of performed original laboratory tests. Ultimately, final conclusions were drawn based on the advanced numerical model that has been developed, verified and validated using laboratory tests results, as well as analytical models and nature of the connection failure was specified.

Keywords

• fem
• cohesive zone model
• shear stresses
• double lap joint