Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Sullivan, Rani W.
Committee Member
Lacy, Thomas E.
Committee Member
Ranatunga, Padmasiri Vipul
Date of Degree
5-6-2017
Document Type
Graduate Thesis - Open Access
Major
Aerospace Engineering
Degree Name
Master of Science (M.S.)
College
James Worth Bagley College of Engineering
Department
Department of Aerospace Engineering
Abstract
As the use of polymer matrix composites for structures increases, there is a growing need for monitoring these structures. Distributed strain sensing using optical fibers shows promise for monitoring composite structures due to optical fiber's small size, light weight, and ability to obtain continuously distributed strain data. This study investigates the feasibility of using embedded optical fibers using two case studies: embedding the fibers in the adhesive layer of double lap shear composite specimens, and within composite end-notched flexure specimens to locate a growing crack front. To establish a repeatable fabrication methodology, manufacturing techniques for embedding the optical fibers were investigated. The measured strain distribution from the optical fibers compares well with data obtained from finite element analyses for both the double lap shear and end-notch flexure specimens. Additionally, the embedded optical fibers do not seem to impact the failure loads or fracture behavior of the specimens.
URI
https://hdl.handle.net/11668/19274
Recommended Citation
Meadows, Leeanna, "Distributed Optical Sensing in Adhesively Bonded Joints and Polymer Matrix Composite Laminates" (2017). Theses and Dissertations. 1537.
https://scholarsjunction.msstate.edu/td/1537