Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves

In this article an attempt has been made to quantitatively assess the extent of delamination in composite laminates, using time-of-flight of fundamental Lamb wave modes, without recourse to baseline data from a healthy structure. An expression has been derived to determine the delamination size, fro...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of intelligent material systems and structures 2010-05, Vol.21 (8), p.817-825
Hauptverfasser: Ramadas, C., Janardhan Padiyar, M., Balasubramaniam, Krishnan, Joshi, Makarand, Krishnamurthy, C.V.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 825
container_issue 8
container_start_page 817
container_title Journal of intelligent material systems and structures
container_volume 21
creator Ramadas, C.
Janardhan Padiyar, M.
Balasubramaniam, Krishnan
Joshi, Makarand
Krishnamurthy, C.V.
description In this article an attempt has been made to quantitatively assess the extent of delamination in composite laminates, using time-of-flight of fundamental Lamb wave modes, without recourse to baseline data from a healthy structure. An expression has been derived to determine the delamination size, from group velocities of primary Lamb modes in the sub-laminates and time-of-flight of transmitted A o signal and mode converted A o signal, which is generated when A o mode propagates through a delamination. The effectiveness of the expression, when group velocities of primary Lamb modes in the main laminate were used, has been verified through numerical simulations carried out on a quasi-isotropic glass/epoxy laminate with various delamination interfaces. The effectiveness of the expression has also been verified experimentally, on two GFRP cross-ply laminates of [0/90/0] lay-up with 40 mm and 50 mm delamination sizes, using air coupled ultrasonic transducers. The predicted delamination sizes were found to be in good agreement with the actual delamination sizes. Using the proposed technique absolute identification of delamination is possible. A supplementary equation for determining the minimum length of delamination has also been derived and presented in the article.
doi_str_mv 10.1177/1045389X10367836
format Article
fullrecord <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1177_1045389X10367836</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1177_1045389X10367836</sourcerecordid><originalsourceid>FETCH-LOGICAL-c886-ba744ad33e095eb50f06328aa7f9d08e3b88e9287c5d927127d0c365ec31179f3</originalsourceid><addsrcrecordid>eNpdkDFPwzAQRi0EEqWwM3qEIXDO1bEzVi0tSEUMVIItcuxLMaoTFKeV2l9PAkxM9933dDc8xq4F3Amh1L2AiUSdvwvATGnMTthISIREC9Snfe5xMvBzdhHjJ4DQEnDEjnPamuBr0_mm5q_-SHxOHdmfdRd9veFrH4g3FV9s_eajG9K07nwSDyFQ13rLb6a84bfc1I4_N474rKn31Hbk-ADCUPVHy513fbUyoeRvZk_xkp1VZhvp6m-O2XrxsJ49JquX5dNsukqs1llSGjWZGIdIkEsqJVSQYaqNUVXuQBOWWlOeamWly1MlUuXAYibJYu8lr3DM4PetbZsYW6qKr9YH0x4KAcWgrvivDr8B75JgBA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves</title><source>SAGE HSS 2017</source><creator>Ramadas, C. ; Janardhan Padiyar, M. ; Balasubramaniam, Krishnan ; Joshi, Makarand ; Krishnamurthy, C.V.</creator><creatorcontrib>Ramadas, C. ; Janardhan Padiyar, M. ; Balasubramaniam, Krishnan ; Joshi, Makarand ; Krishnamurthy, C.V.</creatorcontrib><description>In this article an attempt has been made to quantitatively assess the extent of delamination in composite laminates, using time-of-flight of fundamental Lamb wave modes, without recourse to baseline data from a healthy structure. An expression has been derived to determine the delamination size, from group velocities of primary Lamb modes in the sub-laminates and time-of-flight of transmitted A o signal and mode converted A o signal, which is generated when A o mode propagates through a delamination. The effectiveness of the expression, when group velocities of primary Lamb modes in the main laminate were used, has been verified through numerical simulations carried out on a quasi-isotropic glass/epoxy laminate with various delamination interfaces. The effectiveness of the expression has also been verified experimentally, on two GFRP cross-ply laminates of [0/90/0] lay-up with 40 mm and 50 mm delamination sizes, using air coupled ultrasonic transducers. The predicted delamination sizes were found to be in good agreement with the actual delamination sizes. Using the proposed technique absolute identification of delamination is possible. A supplementary equation for determining the minimum length of delamination has also been derived and presented in the article.</description><identifier>ISSN: 1045-389X</identifier><identifier>EISSN: 1530-8138</identifier><identifier>DOI: 10.1177/1045389X10367836</identifier><language>eng</language><ispartof>Journal of intelligent material systems and structures, 2010-05, Vol.21 (8), p.817-825</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c886-ba744ad33e095eb50f06328aa7f9d08e3b88e9287c5d927127d0c365ec31179f3</citedby><cites>FETCH-LOGICAL-c886-ba744ad33e095eb50f06328aa7f9d08e3b88e9287c5d927127d0c365ec31179f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ramadas, C.</creatorcontrib><creatorcontrib>Janardhan Padiyar, M.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><creatorcontrib>Joshi, Makarand</creatorcontrib><creatorcontrib>Krishnamurthy, C.V.</creatorcontrib><title>Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves</title><title>Journal of intelligent material systems and structures</title><description>In this article an attempt has been made to quantitatively assess the extent of delamination in composite laminates, using time-of-flight of fundamental Lamb wave modes, without recourse to baseline data from a healthy structure. An expression has been derived to determine the delamination size, from group velocities of primary Lamb modes in the sub-laminates and time-of-flight of transmitted A o signal and mode converted A o signal, which is generated when A o mode propagates through a delamination. The effectiveness of the expression, when group velocities of primary Lamb modes in the main laminate were used, has been verified through numerical simulations carried out on a quasi-isotropic glass/epoxy laminate with various delamination interfaces. The effectiveness of the expression has also been verified experimentally, on two GFRP cross-ply laminates of [0/90/0] lay-up with 40 mm and 50 mm delamination sizes, using air coupled ultrasonic transducers. The predicted delamination sizes were found to be in good agreement with the actual delamination sizes. Using the proposed technique absolute identification of delamination is possible. A supplementary equation for determining the minimum length of delamination has also been derived and presented in the article.</description><issn>1045-389X</issn><issn>1530-8138</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNpdkDFPwzAQRi0EEqWwM3qEIXDO1bEzVi0tSEUMVIItcuxLMaoTFKeV2l9PAkxM9933dDc8xq4F3Amh1L2AiUSdvwvATGnMTthISIREC9Snfe5xMvBzdhHjJ4DQEnDEjnPamuBr0_mm5q_-SHxOHdmfdRd9veFrH4g3FV9s_eajG9K07nwSDyFQ13rLb6a84bfc1I4_N474rKn31Hbk-ADCUPVHy513fbUyoeRvZk_xkp1VZhvp6m-O2XrxsJ49JquX5dNsukqs1llSGjWZGIdIkEsqJVSQYaqNUVXuQBOWWlOeamWly1MlUuXAYibJYu8lr3DM4PetbZsYW6qKr9YH0x4KAcWgrvivDr8B75JgBA</recordid><startdate>201005</startdate><enddate>201005</enddate><creator>Ramadas, C.</creator><creator>Janardhan Padiyar, M.</creator><creator>Balasubramaniam, Krishnan</creator><creator>Joshi, Makarand</creator><creator>Krishnamurthy, C.V.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201005</creationdate><title>Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves</title><author>Ramadas, C. ; Janardhan Padiyar, M. ; Balasubramaniam, Krishnan ; Joshi, Makarand ; Krishnamurthy, C.V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c886-ba744ad33e095eb50f06328aa7f9d08e3b88e9287c5d927127d0c365ec31179f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ramadas, C.</creatorcontrib><creatorcontrib>Janardhan Padiyar, M.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><creatorcontrib>Joshi, Makarand</creatorcontrib><creatorcontrib>Krishnamurthy, C.V.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of intelligent material systems and structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ramadas, C.</au><au>Janardhan Padiyar, M.</au><au>Balasubramaniam, Krishnan</au><au>Joshi, Makarand</au><au>Krishnamurthy, C.V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves</atitle><jtitle>Journal of intelligent material systems and structures</jtitle><date>2010-05</date><risdate>2010</risdate><volume>21</volume><issue>8</issue><spage>817</spage><epage>825</epage><pages>817-825</pages><issn>1045-389X</issn><eissn>1530-8138</eissn><abstract>In this article an attempt has been made to quantitatively assess the extent of delamination in composite laminates, using time-of-flight of fundamental Lamb wave modes, without recourse to baseline data from a healthy structure. An expression has been derived to determine the delamination size, from group velocities of primary Lamb modes in the sub-laminates and time-of-flight of transmitted A o signal and mode converted A o signal, which is generated when A o mode propagates through a delamination. The effectiveness of the expression, when group velocities of primary Lamb modes in the main laminate were used, has been verified through numerical simulations carried out on a quasi-isotropic glass/epoxy laminate with various delamination interfaces. The effectiveness of the expression has also been verified experimentally, on two GFRP cross-ply laminates of [0/90/0] lay-up with 40 mm and 50 mm delamination sizes, using air coupled ultrasonic transducers. The predicted delamination sizes were found to be in good agreement with the actual delamination sizes. Using the proposed technique absolute identification of delamination is possible. A supplementary equation for determining the minimum length of delamination has also been derived and presented in the article.</abstract><doi>10.1177/1045389X10367836</doi><tpages>9</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1045-389X
ispartof Journal of intelligent material systems and structures, 2010-05, Vol.21 (8), p.817-825
issn 1045-389X
1530-8138
language eng
recordid cdi_crossref_primary_10_1177_1045389X10367836
source SAGE HSS 2017
title Delamination Size Detection using Time of Flight of Anti-symmetric (A o ) and Mode Converted A o mode of Guided Lamb Waves
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T06%3A55%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Delamination%20Size%20Detection%20using%20Time%20of%20Flight%20of%20Anti-symmetric%20(A%20o%20)%20and%20Mode%20Converted%20A%20o%20mode%20of%20Guided%20Lamb%20Waves&rft.jtitle=Journal%20of%20intelligent%20material%20systems%20and%20structures&rft.au=Ramadas,%20C.&rft.date=2010-05&rft.volume=21&rft.issue=8&rft.spage=817&rft.epage=825&rft.pages=817-825&rft.issn=1045-389X&rft.eissn=1530-8138&rft_id=info:doi/10.1177/1045389X10367836&rft_dat=%3Ccrossref%3E10_1177_1045389X10367836%3C/crossref%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true