E-Thesis 648 views 362 downloads
Bioinspired Investigation via X-Ray Microtomography / Laura E. North
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DOI (Published version): 10.23889/Suthesis.43706
Abstract
Biological materials and systems are increasingly studied to provide inspiration, throughthe correlation of structure and function, for the design of materials in areas such astechnology, engineering and medicine. X-ray microtomography allows three dimensionaland non-destructive visualisation of bot...
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2018
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Institution: | Swansea University |
Degree level: | Doctoral |
Degree name: | Ph.D |
URI: | https://cronfa.swan.ac.uk/Record/cronfa43706 |
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<?xml version="1.0"?><rfc1807><datestamp>2018-09-06T10:58:44.9794514</datestamp><bib-version>v2</bib-version><id>43706</id><entry>2018-09-06</entry><title>Bioinspired Investigation via X-Ray Microtomography</title><swanseaauthors/><date>2018-09-06</date><abstract>Biological materials and systems are increasingly studied to provide inspiration, throughthe correlation of structure and function, for the design of materials in areas such astechnology, engineering and medicine. X-ray microtomography allows three dimensionaland non-destructive visualisation of both internal and external structures. It is the primarymethod used in this study to identify and investigate these natural structures and theirfunctions. Both quantitative and qualitative analysis is performed on the resulting 3D volumetricdata. Further insight is achieved by incorporating complementary methods includinghigh-resolution electron microscopy, nanoindentation and additive layer manufacturing tocharacterise the structures at varying length scales in terms of their structural, chemicaland mechanical properties. Two detailed case studies are given: the vertebrae of the heroshrew (Scutisorex somereni); and the cuttlebone of Sepia officinalis.Hero shrew vertebrae are analysed for the first time using X-ray microtomography. Largevariations in vertebrae volume, surface area and pillar count are shown across samples.Additive layer manufacturing is used to test a simple method for understanding flexibilityacross the vertebrae. The results show limitations of movement in certain directions, givingpotential inspiration for applications in robotics and flexible shafts.The diversity of internal architecture of the cuttlebone is captured for the first time inthree dimensions, highlighting substantial variation in the morphology of pillars. New frameworksare established for pillar morphology across the cuttlebone. These provide a greaterunderstanding to the relationship between pillar morphology and fluid interaction with thestructures of the cuttlebone. Mechanical analysis via time-lapse compression testing showsa progressive collapse mechanism of the chambers. The morphology and properties investigatedcan provide inspiration for improved design of cellular structures, energy absorptionand protection, and potentially for the design of a sophisticated buoyancy device.</abstract><type>E-Thesis</type><journal/><publisher/><keywords/><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2018</publishedYear><publishedDate>2018-12-31</publishedDate><doi>10.23889/Suthesis.43706</doi><url/><notes>A selection of third party content is redacted or is partially redacted from this thesis.</notes><college>COLLEGE NANME</college><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><degreelevel>Doctoral</degreelevel><degreename>Ph.D</degreename><degreesponsorsfunders>EPSRC</degreesponsorsfunders><apcterm/><lastEdited>2018-09-06T10:58:44.9794514</lastEdited><Created>2018-09-06T10:11:39.3054641</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>Laura E.</firstname><surname>North</surname><order>1</order></author></authors><documents><document><filename>0043706-06092018105825.pdf</filename><originalFilename>North_Laura_E_PhD_Redacted.pdf</originalFilename><uploaded>2018-09-06T10:58:25.9170000</uploaded><type>Output</type><contentLength>56957603</contentLength><contentType>application/pdf</contentType><version>Redacted version - open access</version><cronfaStatus>true</cronfaStatus><embargoDate>2018-09-06T00:00:00.0000000</embargoDate><copyrightCorrect>true</copyrightCorrect></document></documents><OutputDurs/></rfc1807> |
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2018-09-06T10:58:44.9794514 v2 43706 2018-09-06 Bioinspired Investigation via X-Ray Microtomography 2018-09-06 Biological materials and systems are increasingly studied to provide inspiration, throughthe correlation of structure and function, for the design of materials in areas such astechnology, engineering and medicine. X-ray microtomography allows three dimensionaland non-destructive visualisation of both internal and external structures. It is the primarymethod used in this study to identify and investigate these natural structures and theirfunctions. Both quantitative and qualitative analysis is performed on the resulting 3D volumetricdata. Further insight is achieved by incorporating complementary methods includinghigh-resolution electron microscopy, nanoindentation and additive layer manufacturing tocharacterise the structures at varying length scales in terms of their structural, chemicaland mechanical properties. Two detailed case studies are given: the vertebrae of the heroshrew (Scutisorex somereni); and the cuttlebone of Sepia officinalis.Hero shrew vertebrae are analysed for the first time using X-ray microtomography. Largevariations in vertebrae volume, surface area and pillar count are shown across samples.Additive layer manufacturing is used to test a simple method for understanding flexibilityacross the vertebrae. The results show limitations of movement in certain directions, givingpotential inspiration for applications in robotics and flexible shafts.The diversity of internal architecture of the cuttlebone is captured for the first time inthree dimensions, highlighting substantial variation in the morphology of pillars. New frameworksare established for pillar morphology across the cuttlebone. These provide a greaterunderstanding to the relationship between pillar morphology and fluid interaction with thestructures of the cuttlebone. Mechanical analysis via time-lapse compression testing showsa progressive collapse mechanism of the chambers. The morphology and properties investigatedcan provide inspiration for improved design of cellular structures, energy absorptionand protection, and potentially for the design of a sophisticated buoyancy device. E-Thesis 31 12 2018 2018-12-31 10.23889/Suthesis.43706 A selection of third party content is redacted or is partially redacted from this thesis. COLLEGE NANME COLLEGE CODE Swansea University Doctoral Ph.D EPSRC 2018-09-06T10:58:44.9794514 2018-09-06T10:11:39.3054641 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Laura E. North 1 0043706-06092018105825.pdf North_Laura_E_PhD_Redacted.pdf 2018-09-06T10:58:25.9170000 Output 56957603 application/pdf Redacted version - open access true 2018-09-06T00:00:00.0000000 true |
title |
Bioinspired Investigation via X-Ray Microtomography |
spellingShingle |
Bioinspired Investigation via X-Ray Microtomography , |
title_short |
Bioinspired Investigation via X-Ray Microtomography |
title_full |
Bioinspired Investigation via X-Ray Microtomography |
title_fullStr |
Bioinspired Investigation via X-Ray Microtomography |
title_full_unstemmed |
Bioinspired Investigation via X-Ray Microtomography |
title_sort |
Bioinspired Investigation via X-Ray Microtomography |
author |
, |
author2 |
Laura E. North |
format |
E-Thesis |
publishDate |
2018 |
institution |
Swansea University |
doi_str_mv |
10.23889/Suthesis.43706 |
college_str |
Faculty of Science and Engineering |
hierarchytype |
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facultyofscienceandengineering |
hierarchy_top_title |
Faculty of Science and Engineering |
hierarchy_parent_id |
facultyofscienceandengineering |
hierarchy_parent_title |
Faculty of Science and Engineering |
department_str |
School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised |
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1 |
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description |
Biological materials and systems are increasingly studied to provide inspiration, throughthe correlation of structure and function, for the design of materials in areas such astechnology, engineering and medicine. X-ray microtomography allows three dimensionaland non-destructive visualisation of both internal and external structures. It is the primarymethod used in this study to identify and investigate these natural structures and theirfunctions. Both quantitative and qualitative analysis is performed on the resulting 3D volumetricdata. Further insight is achieved by incorporating complementary methods includinghigh-resolution electron microscopy, nanoindentation and additive layer manufacturing tocharacterise the structures at varying length scales in terms of their structural, chemicaland mechanical properties. Two detailed case studies are given: the vertebrae of the heroshrew (Scutisorex somereni); and the cuttlebone of Sepia officinalis.Hero shrew vertebrae are analysed for the first time using X-ray microtomography. Largevariations in vertebrae volume, surface area and pillar count are shown across samples.Additive layer manufacturing is used to test a simple method for understanding flexibilityacross the vertebrae. The results show limitations of movement in certain directions, givingpotential inspiration for applications in robotics and flexible shafts.The diversity of internal architecture of the cuttlebone is captured for the first time inthree dimensions, highlighting substantial variation in the morphology of pillars. New frameworksare established for pillar morphology across the cuttlebone. These provide a greaterunderstanding to the relationship between pillar morphology and fluid interaction with thestructures of the cuttlebone. Mechanical analysis via time-lapse compression testing showsa progressive collapse mechanism of the chambers. The morphology and properties investigatedcan provide inspiration for improved design of cellular structures, energy absorptionand protection, and potentially for the design of a sophisticated buoyancy device. |
published_date |
2018-12-31T03:55:01Z |
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1763752753521229824 |
score |
11.021648 |