Published In
International Journal of Adhesion & Adhesives
Document Type
Pre-Print
Publication Date
8-1-2018
Subjects
Composite Joints -- Design and construction
Abstract
Laboratory experiments demonstrate that a novel carbon nanotube (CNT)-based sensing layer embedded in the bondline of an adhesively bonded structural joint can detect and monitor deformation and damage progression of the adhesive layer. In this study, experimental and numerical investigations were performed to identify any effect of an embedded CNT-based sensing layer on the bond strength of that joint. To evaluate the mechanical behavior of such a bondline configuration, two sets of single-lap specimens, with and without sensing layer, were prepared and tested to determine the bond strengths of the respective types. Two-dimensional digital image correlation (2D DIC) was utilized to estimate the load-displacement response of the test specimens. Three-dimensional cohesive surface finite element models of the test specimens, with and without the sensing layer, were created and validated using the experimental measurements. It is shown that the embedded CNT-based sensing layer does not influence the bond strength of the single-lap joint.
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DOI
10.1016/j.ijadhadh.2018.03.014
Persistent Identifier
https://archives.pdx.edu/ds/psu/27022
Citation Details
Ahmed, S., Schumacher, T., McConnell, J., & Thostenson, E. T. (2018). Experimental and numerical investigation on the bond strength of self-sensing composite joints. International Journal of Adhesion and Adhesives, 84, 227-237.
Description
This is the author’s version of a work. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document.