Skip to main content

Research Repository

Advanced Search

Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model

Oz, Fatih E.; Ahmadvashaghbash, Sina; Ersoy, Nuri

Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model Thumbnail


Authors

Fatih E. Oz

Sina Ahmadvashaghbash

Nuri Ersoy



Abstract

© 2018 Elsevier Ltd In this study, damage progression in unidirectional composite specimens is investigated. Transverse Crack Tension specimens are used to stimulate damage in a predetermined progressive sequence. Acoustic Emission (AE) registration technique and its location detection capability is used to identify and locate the damage modes during the tension tests. The k-means++ algorithm is applied to cluster similar AE events and obtain reliable correlations between the damage modes and AE characteristics. Damage modes at the end of interrupted tests are identified under an optical microscope and correlated with locations of AE clusters. It is seen that matrix cracks have high amplitude and duration, whereas delaminations have low amplitude and mid-duration, and fibre breaks have high average frequency characteristics. A finite element analysis was performed to predict the progressive failure behaviour including intralaminar failure and delaminations. The correlations between the AE clusters and damage modes are validated with the finite element model.

Citation

Oz, F. E., Ahmadvashaghbash, S., & Ersoy, N. (2019). Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model. Composites Part B: Engineering, 165, 84-95. https://doi.org/10.1016/j.compositesb.2018.11.104

Journal Article Type Article
Acceptance Date Nov 25, 2018
Online Publication Date Nov 26, 2018
Publication Date May 15, 2019
Deposit Date Jan 24, 2019
Publicly Available Date Nov 27, 2019
Journal Composites Part B: Engineering
Print ISSN 1359-8368
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 165
Pages 84-95
DOI https://doi.org/10.1016/j.compositesb.2018.11.104
Keywords polymer-matrix composites (PMC), transverse cracking, acoustic emission, finite element analysis (FEA)
Public URL https://uwe-repository.worktribe.com/output/846920
Publisher URL http://doi.org/10.1016/j.compositesb.2018.11.104
Additional Information Additional Information : This is the author's accepted manuscript. The final published version is available here: http://doi.org/10.1016/j.compositesb.2018.11.104

Files







You might also like



Downloadable Citations