Detecting Thermal Crack Growth on a Large Additive Manufactured Structure using Acoustic Emission

Ryan Spencer, Miguel González Núñez, Hossain Saboonchi, Valery Godinez-Azcuaga, Uday Vaidya, Vlastimil Kunc, Ahmed Arabi Hassen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Large format additive manufacturing (LFAM) proved to have a great potential to become an adjacent technology to traditional manufacturing methods. One of the sectors LFAM is targeting is rapid tool/mold development for composites. This includes large mold structures used for high-temperature molding techniques (in-oven or autoclave). Although, these large printed structures (reaching hundreds of pounds) develop thermal-residual stress during cool-down and can eventually crack, turning the structure into waste. Acoustic emission (AE), a passive non-intrusive global nondestructive evaluation (NDE) technique, was used to monitor crack growth and can provide the right tools that can be used for feedback loop for corrective action. This research performs thermal testing on a large AM mold with preexisting cracks, in an attempt to monitor crack growth using AE. AE was able to detect, identify and locate the crack source by means of acoustic features, waveform characteristics, spectrum analysis, and difference in arrival times.

Original languageEnglish
Title of host publicationNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVI
EditorsH. Felix Wu, Andrew L. Gyekenyesi, Peter J. Shull, Tzuyang Yu
PublisherSPIE
ISBN (Electronic)9781510649699
DOIs
StatePublished - 2022
EventNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVI 2022 - Virtual, Online
Duration: Apr 4 2022Apr 10 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12047
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVI 2022
CityVirtual, Online
Period04/4/2204/10/22

Funding

Research sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. Part of this work was funded in part by the Office of Energy Efficiency and Renewable Energy (EERE), U.S. Department of Energy, under Award Number DE-EE0006926. We gratefully acknowledge the Institute of Advanced Composites Manufacturing Innovation (IACMI) and the Manufacturing Demonstration Facility (MDF), Oakridge National Laboratory (ORNL), TN, USA for financial and facilities support. This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The published acknowledges the US government license to provide public access under the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan)

FundersFunder number
Institute of Advanced Composites Manufacturing Innovation
Manufacturing Demonstration Facility
U.S. Department of Energy
Advanced Manufacturing OfficeDE-AC05-00OR22725
Office of Energy Efficiency and Renewable EnergyDE-EE0006926
Oak Ridge National Laboratory

    Keywords

    • Acoustic Emission
    • Large Format Additive Manufacturing
    • Nondestructive Evaluation

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