Strain Transfer for Optimal Performance of Sensing Sheet
Sensing sheets based on Large Area Electronics (LAE) and Integrated Circuits (ICs) are novel sensors designed to enable reliable early-stage detection of local unusual structural behaviors. Such a device consists of a dense array of strain sensors, patterned onto a flexible polyimide substrate along...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/6/1907 |
| _version_ | 1798035036649291776 |
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| author | Matthew Gerber Campbell Weaver Levent E. Aygun Naveen Verma James C. Sturm Branko Glišić |
| author_facet | Matthew Gerber Campbell Weaver Levent E. Aygun Naveen Verma James C. Sturm Branko Glišić |
| author_sort | Matthew Gerber |
| collection | DOAJ |
| description | Sensing sheets based on Large Area Electronics (LAE) and Integrated Circuits (ICs) are novel sensors designed to enable reliable early-stage detection of local unusual structural behaviors. Such a device consists of a dense array of strain sensors, patterned onto a flexible polyimide substrate along with associated electronics. Previous tests performed on steel specimens equipped with sensing sheet prototypes and subjected to fatigue cracking pointed to a potential issue: individual sensors that were on or near a crack would immediately be damaged by the crack, thereby rendering them useless in assessing the size of the crack opening or to monitor future crack growth. In these tests, a stiff adhesive was used to bond the sensing sheet prototype to the steel specimen. Such an adhesive provided excellent strain transfer, but it also caused premature failure of individual sensors within the sheet. Therefore, the aim of this paper is to identify an alternative adhesive that survives minor damage, yet provides strain transfer that is sufficient for reliable early-stage crack detection. A sensor sheet prototype is then calibrated for use with the selected adhesive. |
| first_indexed | 2024-04-11T20:52:38Z |
| format | Article |
| id | doaj.art-392a29171b234ccd8667da9cf887562d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:52:38Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-392a29171b234ccd8667da9cf887562d2022-12-22T04:03:47ZengMDPI AGSensors1424-82202018-06-01186190710.3390/s18061907s18061907Strain Transfer for Optimal Performance of Sensing SheetMatthew Gerber0Campbell Weaver1Levent E. Aygun2Naveen Verma3James C. Sturm4Branko Glišić5Departments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USADepartments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USADepartments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USADepartments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USADepartments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USADepartments of Civil and Environmental Engineering, and Electrical Engineering, Princeton University, Princeton, NJ 08544, USASensing sheets based on Large Area Electronics (LAE) and Integrated Circuits (ICs) are novel sensors designed to enable reliable early-stage detection of local unusual structural behaviors. Such a device consists of a dense array of strain sensors, patterned onto a flexible polyimide substrate along with associated electronics. Previous tests performed on steel specimens equipped with sensing sheet prototypes and subjected to fatigue cracking pointed to a potential issue: individual sensors that were on or near a crack would immediately be damaged by the crack, thereby rendering them useless in assessing the size of the crack opening or to monitor future crack growth. In these tests, a stiff adhesive was used to bond the sensing sheet prototype to the steel specimen. Such an adhesive provided excellent strain transfer, but it also caused premature failure of individual sensors within the sheet. Therefore, the aim of this paper is to identify an alternative adhesive that survives minor damage, yet provides strain transfer that is sufficient for reliable early-stage crack detection. A sensor sheet prototype is then calibrated for use with the selected adhesive.http://www.mdpi.com/1424-8220/18/6/1907structural health monitoringstrain transfersensing sheetlarge area electronicsdamage detectionflexible adhesive |
| spellingShingle | Matthew Gerber Campbell Weaver Levent E. Aygun Naveen Verma James C. Sturm Branko Glišić Strain Transfer for Optimal Performance of Sensing Sheet Sensors structural health monitoring strain transfer sensing sheet large area electronics damage detection flexible adhesive |
| title | Strain Transfer for Optimal Performance of Sensing Sheet |
| title_full | Strain Transfer for Optimal Performance of Sensing Sheet |
| title_fullStr | Strain Transfer for Optimal Performance of Sensing Sheet |
| title_full_unstemmed | Strain Transfer for Optimal Performance of Sensing Sheet |
| title_short | Strain Transfer for Optimal Performance of Sensing Sheet |
| title_sort | strain transfer for optimal performance of sensing sheet |
| topic | structural health monitoring strain transfer sensing sheet large area electronics damage detection flexible adhesive |
| url | http://www.mdpi.com/1424-8220/18/6/1907 |
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