Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates

Interleaving composite laminates by nanofibers is a well-known method of increasing interlaminar fracture toughness. Among many possibilities, polycaprolactone (PCL) nanofibers is one of the best choices for toughening composite laminates. The influence of PCL on delamination mode of failure is cons...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ali Gholizadeh, Hasan Mansouri, Ali Nikbakht, Hamed Saghafi, Mohamad Fotouhi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	composite laminates PCL nanofibers fracture test acoustic emission technique Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/02c1683aa6e743d18d6e9a37b923a15a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:02c1683aa6e743d18d6e9a37b923a15a
record_format	dspace
spelling	oai:doaj.org-article:02c1683aa6e743d18d6e9a37b923a15a2021-11-11T18:43:44ZApplying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates10.3390/polym132136802073-4360https://doaj.org/article/02c1683aa6e743d18d6e9a37b923a15a2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3680https://doaj.org/toc/2073-4360Interleaving composite laminates by nanofibers is a well-known method of increasing interlaminar fracture toughness. Among many possibilities, polycaprolactone (PCL) nanofibers is one of the best choices for toughening composite laminates. The influence of PCL on delamination mode of failure is considered before. However, the effect of PCL on other damage modes, such as fiber breakage and matrix cracking, is yet to be studied. In this study, the acoustic emission (AE) technique is applied to determine the effect of toughening composite laminates by PCL nanofibers on matrix cracking, fiber/matrix debonding, and fiber breakage failure mechanisms. For this purpose, mode I and mode II fracture tests are conducted on modified and non-modified glass/epoxy laminates. Three different methods, i.e., peak frequency, wavelet transform, and sentry function, are utilized for analyzing the recorded AE data from mode I test. The results show that applying PCL nanofibers not only increases the mode I critical strain energy release rate by about 38%, but also decreases different failure mechanisms by between 75 and 94%.Ali GholizadehHasan MansouriAli NikbakhtHamed SaghafiMohamad FotouhiMDPI AGarticlecomposite laminatesPCL nanofibersfracture testacoustic emission techniqueOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3680, p 3680 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite laminates PCL nanofibers fracture test acoustic emission technique Organic chemistry QD241-441
spellingShingle	composite laminates PCL nanofibers fracture test acoustic emission technique Organic chemistry QD241-441 Ali Gholizadeh Hasan Mansouri Ali Nikbakht Hamed Saghafi Mohamad Fotouhi Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
description	Interleaving composite laminates by nanofibers is a well-known method of increasing interlaminar fracture toughness. Among many possibilities, polycaprolactone (PCL) nanofibers is one of the best choices for toughening composite laminates. The influence of PCL on delamination mode of failure is considered before. However, the effect of PCL on other damage modes, such as fiber breakage and matrix cracking, is yet to be studied. In this study, the acoustic emission (AE) technique is applied to determine the effect of toughening composite laminates by PCL nanofibers on matrix cracking, fiber/matrix debonding, and fiber breakage failure mechanisms. For this purpose, mode I and mode II fracture tests are conducted on modified and non-modified glass/epoxy laminates. Three different methods, i.e., peak frequency, wavelet transform, and sentry function, are utilized for analyzing the recorded AE data from mode I test. The results show that applying PCL nanofibers not only increases the mode I critical strain energy release rate by about 38%, but also decreases different failure mechanisms by between 75 and 94%.
format	article
author	Ali Gholizadeh Hasan Mansouri Ali Nikbakht Hamed Saghafi Mohamad Fotouhi
author_facet	Ali Gholizadeh Hasan Mansouri Ali Nikbakht Hamed Saghafi Mohamad Fotouhi
author_sort	Ali Gholizadeh
title	Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
title_short	Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
title_full	Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
title_fullStr	Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
title_full_unstemmed	Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates
title_sort	applying acoustic emission technique for detecting various damages occurred in pcl nanomodified composite laminates
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/02c1683aa6e743d18d6e9a37b923a15a
work_keys_str_mv	AT aligholizadeh applyingacousticemissiontechniquefordetectingvariousdamagesoccurredinpclnanomodifiedcompositelaminates AT hasanmansouri applyingacousticemissiontechniquefordetectingvariousdamagesoccurredinpclnanomodifiedcompositelaminates AT alinikbakht applyingacousticemissiontechniquefordetectingvariousdamagesoccurredinpclnanomodifiedcompositelaminates AT hamedsaghafi applyingacousticemissiontechniquefordetectingvariousdamagesoccurredinpclnanomodifiedcompositelaminates AT mohamadfotouhi applyingacousticemissiontechniquefordetectingvariousdamagesoccurredinpclnanomodifiedcompositelaminates
_version_	1718431743836422144

Applying Acoustic Emission Technique for Detecting Various Damages Occurred in PCL Nanomodified Composite Laminates

Ejemplares similares