Detection of ultrasonic Lamb waves in composite plates using optical-fibres
This paper presents experimental results for a new condition monitoring system that uses a combination of piezoelectric and fibre-optic technologies as the active and passive elements respectively. Composite plate samples have been manufactured containing two groups of optical-fibres (typically four...
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| creator | Gachagan, A. Pierce, S.G. Philp, W.R. McNab, A. Hayward, G. Culshaw, B. |
| description | This paper presents experimental results for a new condition monitoring system that uses a combination of piezoelectric and fibre-optic technologies as the active and passive elements respectively. Composite plate samples have been manufactured containing two groups of optical-fibres (typically four strands per group) embedded across the length of the plate. Polyimide coated 4/125 /spl mu/m single-mode glass fibre has been utilised and connected to a portable 633 nm Mach-Zehnder fibre interferometer for signal demodulation and subsequent data acquisition. For this present work, 1-3 connectivity piezocomposite transducers have been used to generate a known Lamb wave within carbon fibre reinforced composite plate (CFRP) structures. The S/sub 0/ mode was selected due to the relatively large in-plane motion and low dispersion characteristics. Results using both externally surface bonded fibres and embedded fibres are presented, for a range of defective plates. Defects ranging from 1 mm diameter holes through to significant delaminations have been detected at an ultrasonic operating frequency of 285 kHz. |
| doi_str_mv | 10.1109/ULTSYM.1995.495688 |
| format | Conference Proceeding |
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Composite plate samples have been manufactured containing two groups of optical-fibres (typically four strands per group) embedded across the length of the plate. Polyimide coated 4/125 /spl mu/m single-mode glass fibre has been utilised and connected to a portable 633 nm Mach-Zehnder fibre interferometer for signal demodulation and subsequent data acquisition. For this present work, 1-3 connectivity piezocomposite transducers have been used to generate a known Lamb wave within carbon fibre reinforced composite plate (CFRP) structures. The S/sub 0/ mode was selected due to the relatively large in-plane motion and low dispersion characteristics. Results using both externally surface bonded fibres and embedded fibres are presented, for a range of defective plates. Defects ranging from 1 mm diameter holes through to significant delaminations have been detected at an ultrasonic operating frequency of 285 kHz.</description><identifier>ISSN: 1051-0117</identifier><identifier>ISBN: 9780780329409</identifier><identifier>ISBN: 0780329406</identifier><identifier>DOI: 10.1109/ULTSYM.1995.495688</identifier><language>eng</language><publisher>IEEE</publisher><subject>Bonding ; Condition monitoring ; Data acquisition ; Demodulation ; Glass ; Manufacturing ; Optical interferometry ; Optical surface waves ; Polyimides ; Transducers</subject><ispartof>1995 IEEE Ultrasonics Symposium. Proceedings. 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Proceedings. An International Symposium</title><addtitle>ULTSYM</addtitle><description>This paper presents experimental results for a new condition monitoring system that uses a combination of piezoelectric and fibre-optic technologies as the active and passive elements respectively. Composite plate samples have been manufactured containing two groups of optical-fibres (typically four strands per group) embedded across the length of the plate. Polyimide coated 4/125 /spl mu/m single-mode glass fibre has been utilised and connected to a portable 633 nm Mach-Zehnder fibre interferometer for signal demodulation and subsequent data acquisition. For this present work, 1-3 connectivity piezocomposite transducers have been used to generate a known Lamb wave within carbon fibre reinforced composite plate (CFRP) structures. The S/sub 0/ mode was selected due to the relatively large in-plane motion and low dispersion characteristics. Results using both externally surface bonded fibres and embedded fibres are presented, for a range of defective plates. Defects ranging from 1 mm diameter holes through to significant delaminations have been detected at an ultrasonic operating frequency of 285 kHz.</description><subject>Bonding</subject><subject>Condition monitoring</subject><subject>Data acquisition</subject><subject>Demodulation</subject><subject>Glass</subject><subject>Manufacturing</subject><subject>Optical interferometry</subject><subject>Optical surface waves</subject><subject>Polyimides</subject><subject>Transducers</subject><issn>1051-0117</issn><isbn>9780780329409</isbn><isbn>0780329406</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1995</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj8tKxDAYhQMqOI7zArPKC7T-ubZZyngZseLCunA1_E0TifRGk1F8ewsjHDiHb3E4h5Atg5wxMDfvVf328ZIzY1QujdJleUY2pihhkeBGgjknKwaKZcBYcUmuYvwC4KC4XJHnO5ecTWEc6OjpsUszxnEIllbYN_QHv12kYaB27KcxhuTo1GFa2DGG4ZOOUwoWu8yHZnbxmlx47KLb_Pua1A_39W6fVa-PT7vbKgus4ClTHoE33JpWSyFa6STjAptlqfal0qC9UtguCUXhFHijPRNolYRSKSnFmmxPtcE5d5jm0OP8ezg9F3_J6k02</recordid><startdate>1995</startdate><enddate>1995</enddate><creator>Gachagan, A.</creator><creator>Pierce, S.G.</creator><creator>Philp, W.R.</creator><creator>McNab, A.</creator><creator>Hayward, G.</creator><creator>Culshaw, B.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1995</creationdate><title>Detection of ultrasonic Lamb waves in composite plates using optical-fibres</title><author>Gachagan, A. ; Pierce, S.G. ; Philp, W.R. ; McNab, A. ; Hayward, G. ; Culshaw, B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i172t-5fa02b2c9d6433d4e4123ab2946f85606f55ad856a37e50f96f13ac540855443</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Bonding</topic><topic>Condition monitoring</topic><topic>Data acquisition</topic><topic>Demodulation</topic><topic>Glass</topic><topic>Manufacturing</topic><topic>Optical interferometry</topic><topic>Optical surface waves</topic><topic>Polyimides</topic><topic>Transducers</topic><toplevel>online_resources</toplevel><creatorcontrib>Gachagan, A.</creatorcontrib><creatorcontrib>Pierce, S.G.</creatorcontrib><creatorcontrib>Philp, W.R.</creatorcontrib><creatorcontrib>McNab, A.</creatorcontrib><creatorcontrib>Hayward, G.</creatorcontrib><creatorcontrib>Culshaw, B.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Gachagan, A.</au><au>Pierce, S.G.</au><au>Philp, W.R.</au><au>McNab, A.</au><au>Hayward, G.</au><au>Culshaw, B.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Detection of ultrasonic Lamb waves in composite plates using optical-fibres</atitle><btitle>1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium</btitle><stitle>ULTSYM</stitle><date>1995</date><risdate>1995</risdate><volume>1</volume><spage>803</spage><epage>806 vol.1</epage><pages>803-806 vol.1</pages><issn>1051-0117</issn><isbn>9780780329409</isbn><isbn>0780329406</isbn><abstract>This paper presents experimental results for a new condition monitoring system that uses a combination of piezoelectric and fibre-optic technologies as the active and passive elements respectively. Composite plate samples have been manufactured containing two groups of optical-fibres (typically four strands per group) embedded across the length of the plate. Polyimide coated 4/125 /spl mu/m single-mode glass fibre has been utilised and connected to a portable 633 nm Mach-Zehnder fibre interferometer for signal demodulation and subsequent data acquisition. For this present work, 1-3 connectivity piezocomposite transducers have been used to generate a known Lamb wave within carbon fibre reinforced composite plate (CFRP) structures. The S/sub 0/ mode was selected due to the relatively large in-plane motion and low dispersion characteristics. Results using both externally surface bonded fibres and embedded fibres are presented, for a range of defective plates. Defects ranging from 1 mm diameter holes through to significant delaminations have been detected at an ultrasonic operating frequency of 285 kHz.</abstract><pub>IEEE</pub><doi>10.1109/ULTSYM.1995.495688</doi></addata></record> |
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| identifier | ISSN: 1051-0117 |
| ispartof | 1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium, 1995, Vol.1, p.803-806 vol.1 |
| issn | 1051-0117 |
| language | eng |
| recordid | cdi_ieee_primary_495688 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Bonding Condition monitoring Data acquisition Demodulation Glass Manufacturing Optical interferometry Optical surface waves Polyimides Transducers |
| title | Detection of ultrasonic Lamb waves in composite plates using optical-fibres |
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