‘Seeing’ Strain in Soft Materials
Several technologies can be used for measuring strains of soft materials under high rate impact conditions. These technologies include high speed tensile test, split Hopkinson pressure bar test, digital image correlation and high speed X-ray imaging. However, none of these existing technologies can...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-02-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/24/3/542 |
| _version_ | 1798043911621443584 |
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| author | Zhiyong Xia Vanessa D. Alphonse Doug B. Trigg Tim P. Harrigan Jeff M. Paulson Quang T. Luong Evan P. Lloyd Meredith H. Barbee Stephen L. Craig |
| author_facet | Zhiyong Xia Vanessa D. Alphonse Doug B. Trigg Tim P. Harrigan Jeff M. Paulson Quang T. Luong Evan P. Lloyd Meredith H. Barbee Stephen L. Craig |
| author_sort | Zhiyong Xia |
| collection | DOAJ |
| description | Several technologies can be used for measuring strains of soft materials under high rate impact conditions. These technologies include high speed tensile test, split Hopkinson pressure bar test, digital image correlation and high speed X-ray imaging. However, none of these existing technologies can produce a continuous 3D spatial strain distribution in the test specimen. Here we report a novel passive strain sensor based on poly(dimethyl siloxane) (PDMS) elastomer with covalently incorporated spiropyran (SP) mechanophore to measure impact induced strains. We have shown that the incorporation of SP into PDMS at 0.25 wt% level can adequately measure impact strains via color change under a high strain rate of 1500 s<sup>−1</sup> within a fraction of a millisecond. Further, the color change is fully reversible and thus can be used repeatedly. This technology has a high potential to be used for quantifying brain strain for traumatic brain injury applications. |
| first_indexed | 2024-04-11T22:55:37Z |
| format | Article |
| id | doaj.art-ace8f988585e4b7d82570ddbf50bb2f6 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-11T22:55:37Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ace8f988585e4b7d82570ddbf50bb2f62022-12-22T03:58:25ZengMDPI AGMolecules1420-30492019-02-0124354210.3390/molecules24030542molecules24030542‘Seeing’ Strain in Soft MaterialsZhiyong Xia0Vanessa D. Alphonse1Doug B. Trigg2Tim P. Harrigan3Jeff M. Paulson4Quang T. Luong5Evan P. Lloyd6Meredith H. Barbee7Stephen L. Craig8Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USAApplied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USADepartment of Chemistry, Duke University, Durham, NC 27708, USADepartment of Chemistry, Duke University, Durham, NC 27708, USASeveral technologies can be used for measuring strains of soft materials under high rate impact conditions. These technologies include high speed tensile test, split Hopkinson pressure bar test, digital image correlation and high speed X-ray imaging. However, none of these existing technologies can produce a continuous 3D spatial strain distribution in the test specimen. Here we report a novel passive strain sensor based on poly(dimethyl siloxane) (PDMS) elastomer with covalently incorporated spiropyran (SP) mechanophore to measure impact induced strains. We have shown that the incorporation of SP into PDMS at 0.25 wt% level can adequately measure impact strains via color change under a high strain rate of 1500 s<sup>−1</sup> within a fraction of a millisecond. Further, the color change is fully reversible and thus can be used repeatedly. This technology has a high potential to be used for quantifying brain strain for traumatic brain injury applications.https://www.mdpi.com/1420-3049/24/3/542spiropyranimpact strainpoly(dimethyl siloxane)mechanophorestrain sensing |
| spellingShingle | Zhiyong Xia Vanessa D. Alphonse Doug B. Trigg Tim P. Harrigan Jeff M. Paulson Quang T. Luong Evan P. Lloyd Meredith H. Barbee Stephen L. Craig ‘Seeing’ Strain in Soft Materials Molecules spiropyran impact strain poly(dimethyl siloxane) mechanophore strain sensing |
| title | ‘Seeing’ Strain in Soft Materials |
| title_full | ‘Seeing’ Strain in Soft Materials |
| title_fullStr | ‘Seeing’ Strain in Soft Materials |
| title_full_unstemmed | ‘Seeing’ Strain in Soft Materials |
| title_short | ‘Seeing’ Strain in Soft Materials |
| title_sort | seeing strain in soft materials |
| topic | spiropyran impact strain poly(dimethyl siloxane) mechanophore strain sensing |
| url | https://www.mdpi.com/1420-3049/24/3/542 |
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