Asee peer logo

Laser Induced Fluorescence Imaging Of Thermal Damage In Polymer Composites

Download Paper |

Conference

1999 Annual Conference

Location

Charlotte, North Carolina

Publication Date

June 20, 1999

Start Date

June 20, 1999

End Date

June 23, 1999

ISSN

2153-5965

Page Count

10

Page Numbers

4.359.1 - 4.359.10

Permanent URL

https://peer.asee.org/7805

Download Count

83

Request a correction

Paper Authors

author page

Asad Yousuf

Download Paper |

Abstract
NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 3659

Laser Induced Fluorescence Imaging Of Thermal Damage in Polymer Composites Using LabView and IMAQ Vision

Asad Yousuf, P.E Professor, Electronics Engineering Technology Savannah State University

ABSTRACT

Polymer-composites (PMC’s) are becoming increasingly important in the production of high performance vehicles and aircraft, where their low weight and high mechanical strength, combined with advancements in manufacturing technology, ensure increased use for a variety of applications. Of particular concern in the aerospace industry is the tendency of some PMC materials to become irreversibly damaged when exposed to elevated temperatures. This paper will discuss fluorescence based imaging system capable of identifying regions of thermal damage in polymer-matrix composites.

In an effort to further understand the intervening functions assigned to the assessment of thermal damages in polymer composites this paper will demonstrate a PC-based virtual instrumentation system using the Image Acquisition (IMAQ) Vision software with the General Purpose Interface Bus (GPIB) controlled by the LabView (Laboratory Virtual Instrument Engineering Workbench) software.

I. INTRODUCTION

Spectral imaging is the determination of spatially distributed and chemically/biologically distinct elements in heterogeneous material. It is a powerful tool for studying a wide range of materials including biological materials, polymers, and semiconductors. Advances in the field of spectral imaging made through the development of a number of different types of technology, including digital image processing hardware and software, and continuously tunable, image quality spectral filters have resulted in the rapid collection of specific images that have high contrast and high resolution.

Typical non-destructive techniques are capable of detecting flaws, such as cracks and delaminations, but cannot detect initial heat damage, which occurs on a molecular scale. There are many methods in use such as: Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), Optical Microscopy and etc. used to investigate heat damage of composites and epoxies. Spectroscopic techniques such as Laser-Induced Fluorescence (LIF) can detect molecular changes of the polymer matrix resin that results from elevated temperatures. LIF can be used as a tool for quantifying and imaging heat-

Yousuf, A. (1999, June), Laser Induced Fluorescence Imaging Of Thermal Damage In Polymer Composites Paper presented at 1999 Annual Conference, Charlotte, North Carolina. https://peer.asee.org/7805

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 1999 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015