Related Experiment Video
Updated: Jan 26, 2026

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
Published on: October 6, 2017
Flexible Adhesive in Composite-to-Brick Strengthening-Experimental and Numerical Study
Arkadiusz Kwiecień1, Piotr Krajewski2, Łukasz Hojdys3
1Institute of Structural Mechanics, Cracow University of Technology, 31-155 Cracow, Poland. arkadiusz.kwiecien@pk.edu.pl.
Abstract:
This paper investigates composite-to-brick strengthening systems with flexible adhesive made of polyurethane (Carbon Fibre Reinforced Polyurethane (CFRPU) and Steel Reinforced Polyurethane (SRPU)) and epoxy resin (Carbon Fibre Reinforced Polymer (CFRP) and Steel Reinforced Polymer (SRP). The specimens were tested in a single lap shear test (SLST). LVDT displacement transducers (LVDT ⁻ Linear Variable Differential Transformer) and digital image correlation method (DIC) based measurement systems were used to measure displacements and strains. The obtained results were applied in a numerical analysis of the 3D model of the SLST specimen, with flexible adhesives modeled as a hyper-elastic model. The DIC and LVDT based systems demonstrated a good correlation. Experimental and numerical analysis confirmed that composite-to-brick strengthening systems with flexible adhesives are more effective on brittle substrates than stiff ones, as they are able to reduce stress concentrations and more evenly distribute stress along the entire bonded length, thus having a higher load carrying capacity.
Related Concept Videos
Bricks
Soft mud bricks are shaped in molds with high moisture content and can be...
Numerical Calculations
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
Brick Sizes
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
Brick Classifications
Brick Masonry
For thicker walls, multiple wythes are bonded together using...
Adhesion
Capillary action is a result of water’s adhesive tendencies. When a narrow...

