The effects of topology and relative density of lattice liners on traumatic brain injury mitigation
This paper evaluates the effects of topology and relative density of helmet lattice liners on mitigating Traumatic Brain Injury (TBI). Finite Element (FE) models of new lattice liners with prismatic and tetrahedral topologies were developed. A typical frontal head impact in motorcycle accidents was...
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| Veröffentlicht in: | Journal of biomechanics 2019-12, Vol.97, p.109376-109376, Article 109376 |
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| container_title | Journal of biomechanics |
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| creator | Khosroshahi, Siamak Farajzadeh Duckworth, Harry Galvanetto, Ugo Ghajari, Mazdak |
| description | This paper evaluates the effects of topology and relative density of helmet lattice liners on mitigating Traumatic Brain Injury (TBI). Finite Element (FE) models of new lattice liners with prismatic and tetrahedral topologies were developed. A typical frontal head impact in motorcycle accidents was simulated, and linear and rotational accelerations of the head were recorded. A high-fidelity FE model of TBI was loaded with the accelerations to predict the brain response during the accident. The results show that prismatic lattices have better performance in preventing TBI than tetrahedral lattices and EPS that is typically used in helmets. Moreover, varying the cell size through the thickness of the liner improves its performance, but this effect was marginal. The relative density also has a significant effect, with lattices with lower relative densities providing better protection. Across different lattices studied here, the prismatic lattice with a relative density of 6% had the best performance and reduced the peak linear and rotational accelerations, Head Injury Criterion (HIC), brain strain and strain rate by 48%, 37%, 49%, 32% and 65% respectively, compared to the EPS liner. These results can be used to guide the design of lattice helmet liners for better mitigation of TBI. |
| doi_str_mv | 10.1016/j.jbiomech.2019.109376 |
| format | Article |
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Finite Element (FE) models of new lattice liners with prismatic and tetrahedral topologies were developed. A typical frontal head impact in motorcycle accidents was simulated, and linear and rotational accelerations of the head were recorded. A high-fidelity FE model of TBI was loaded with the accelerations to predict the brain response during the accident. The results show that prismatic lattices have better performance in preventing TBI than tetrahedral lattices and EPS that is typically used in helmets. Moreover, varying the cell size through the thickness of the liner improves its performance, but this effect was marginal. The relative density also has a significant effect, with lattices with lower relative densities providing better protection. Across different lattices studied here, the prismatic lattice with a relative density of 6% had the best performance and reduced the peak linear and rotational accelerations, Head Injury Criterion (HIC), brain strain and strain rate by 48%, 37%, 49%, 32% and 65% respectively, compared to the EPS liner. These results can be used to guide the design of lattice helmet liners for better mitigation of TBI.</description><identifier>ISSN: 0021-9290</identifier><identifier>EISSN: 1873-2380</identifier><identifier>DOI: 10.1016/j.jbiomech.2019.109376</identifier><identifier>PMID: 31627837</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>Accidents ; Additive manufacturing ; Brain ; Cell size ; Computer simulation ; Density ; FEM ; Finite element method ; Graded lattice ; Head injuries ; Helmet ; Helmets ; Injury prevention ; Lattice design ; Lattices ; Linings ; Mathematical models ; Motorcycles ; PPE ; Strain rate ; Studies ; TBI ; Topology ; Traumatic brain injury</subject><ispartof>Journal of biomechanics, 2019-12, Vol.97, p.109376-109376, Article 109376</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright © 2019 Elsevier Ltd. All rights reserved.</rights><rights>2019. Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c497t-851af1e8e1897775235f4fcf8f57ebb22947a4d793853ce002d90412bc83f6b03</citedby><cites>FETCH-LOGICAL-c497t-851af1e8e1897775235f4fcf8f57ebb22947a4d793853ce002d90412bc83f6b03</cites><orcidid>0000-0001-5678-5124</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2317269201?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995,64385,64387,64389,72469</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31627837$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Khosroshahi, Siamak Farajzadeh</creatorcontrib><creatorcontrib>Duckworth, Harry</creatorcontrib><creatorcontrib>Galvanetto, Ugo</creatorcontrib><creatorcontrib>Ghajari, Mazdak</creatorcontrib><title>The effects of topology and relative density of lattice liners on traumatic brain injury mitigation</title><title>Journal of biomechanics</title><addtitle>J Biomech</addtitle><description>This paper evaluates the effects of topology and relative density of helmet lattice liners on mitigating Traumatic Brain Injury (TBI). Finite Element (FE) models of new lattice liners with prismatic and tetrahedral topologies were developed. A typical frontal head impact in motorcycle accidents was simulated, and linear and rotational accelerations of the head were recorded. A high-fidelity FE model of TBI was loaded with the accelerations to predict the brain response during the accident. The results show that prismatic lattices have better performance in preventing TBI than tetrahedral lattices and EPS that is typically used in helmets. Moreover, varying the cell size through the thickness of the liner improves its performance, but this effect was marginal. The relative density also has a significant effect, with lattices with lower relative densities providing better protection. Across different lattices studied here, the prismatic lattice with a relative density of 6% had the best performance and reduced the peak linear and rotational accelerations, Head Injury Criterion (HIC), brain strain and strain rate by 48%, 37%, 49%, 32% and 65% respectively, compared to the EPS liner. These results can be used to guide the design of lattice helmet liners for better mitigation of TBI.</description><subject>Accidents</subject><subject>Additive manufacturing</subject><subject>Brain</subject><subject>Cell size</subject><subject>Computer simulation</subject><subject>Density</subject><subject>FEM</subject><subject>Finite element method</subject><subject>Graded lattice</subject><subject>Head injuries</subject><subject>Helmet</subject><subject>Helmets</subject><subject>Injury prevention</subject><subject>Lattice design</subject><subject>Lattices</subject><subject>Linings</subject><subject>Mathematical models</subject><subject>Motorcycles</subject><subject>PPE</subject><subject>Strain rate</subject><subject>Studies</subject><subject>TBI</subject><subject>Topology</subject><subject>Traumatic brain injury</subject><issn>0021-9290</issn><issn>1873-2380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFkc1q3DAUhUVpaSZpXyEIssnGU_3YlrRrCElTGOgmXQtZvkpkbGkqyYF5-2qYJItuuhIcvnOv7jkIXVKypYT236btNPi4gH3eMkJVFRUX_Qe0oVLwhnFJPqINIYw2iilyhs5zngghohXqMzrjtGdCcrFB9vEZMDgHtmQcHS5xH-f4dMAmjDjBbIp_ATxCyL4cjkBVireAZx8gVUvAJZl1qZzFQzI-YB-mNR3w4ot_qnIMX9AnZ-YMX1_fC_T7_u7x9qHZ_frx8_Zm19hWidLIjhpHQQKVSgjRMd651lknXSdgGBhTrTDtKBSXHbdQjxsVaSkbrOSuHwi_QNenufsU_6yQi158tjDPJkBcs2acCNqqvqMVvfoHneKaQv1dpahgvaqpVqo_UTbFnBM4vU9-MemgKdHHGvSk32rQxxr0qYZqvHwdvw4LjO-2t9wr8P0EQM3jxUPS2XoIFkafahV6jP5_O_4CVIycHQ</recordid><startdate>20191203</startdate><enddate>20191203</enddate><creator>Khosroshahi, Siamak Farajzadeh</creator><creator>Duckworth, Harry</creator><creator>Galvanetto, Ugo</creator><creator>Ghajari, Mazdak</creator><general>Elsevier Ltd</general><general>Elsevier Limited</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7TB</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M7P</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-5678-5124</orcidid></search><sort><creationdate>20191203</creationdate><title>The effects of topology and relative density of lattice liners on traumatic brain injury mitigation</title><author>Khosroshahi, Siamak Farajzadeh ; Duckworth, Harry ; Galvanetto, Ugo ; Ghajari, Mazdak</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c497t-851af1e8e1897775235f4fcf8f57ebb22947a4d793853ce002d90412bc83f6b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Accidents</topic><topic>Additive manufacturing</topic><topic>Brain</topic><topic>Cell size</topic><topic>Computer simulation</topic><topic>Density</topic><topic>FEM</topic><topic>Finite element method</topic><topic>Graded lattice</topic><topic>Head injuries</topic><topic>Helmet</topic><topic>Helmets</topic><topic>Injury prevention</topic><topic>Lattice design</topic><topic>Lattices</topic><topic>Linings</topic><topic>Mathematical models</topic><topic>Motorcycles</topic><topic>PPE</topic><topic>Strain rate</topic><topic>Studies</topic><topic>TBI</topic><topic>Topology</topic><topic>Traumatic brain injury</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khosroshahi, Siamak Farajzadeh</creatorcontrib><creatorcontrib>Duckworth, Harry</creatorcontrib><creatorcontrib>Galvanetto, Ugo</creatorcontrib><creatorcontrib>Ghajari, Mazdak</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Physical Education Index</collection><collection>ProQuest_Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>ProQuest research library</collection><collection>Biological Science Database</collection><collection>Research Library (Corporate)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khosroshahi, Siamak Farajzadeh</au><au>Duckworth, Harry</au><au>Galvanetto, Ugo</au><au>Ghajari, Mazdak</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effects of topology and relative density of lattice liners on traumatic brain injury mitigation</atitle><jtitle>Journal of biomechanics</jtitle><addtitle>J Biomech</addtitle><date>2019-12-03</date><risdate>2019</risdate><volume>97</volume><spage>109376</spage><epage>109376</epage><pages>109376-109376</pages><artnum>109376</artnum><issn>0021-9290</issn><eissn>1873-2380</eissn><abstract>This paper evaluates the effects of topology and relative density of helmet lattice liners on mitigating Traumatic Brain Injury (TBI). Finite Element (FE) models of new lattice liners with prismatic and tetrahedral topologies were developed. A typical frontal head impact in motorcycle accidents was simulated, and linear and rotational accelerations of the head were recorded. A high-fidelity FE model of TBI was loaded with the accelerations to predict the brain response during the accident. The results show that prismatic lattices have better performance in preventing TBI than tetrahedral lattices and EPS that is typically used in helmets. Moreover, varying the cell size through the thickness of the liner improves its performance, but this effect was marginal. The relative density also has a significant effect, with lattices with lower relative densities providing better protection. Across different lattices studied here, the prismatic lattice with a relative density of 6% had the best performance and reduced the peak linear and rotational accelerations, Head Injury Criterion (HIC), brain strain and strain rate by 48%, 37%, 49%, 32% and 65% respectively, compared to the EPS liner. These results can be used to guide the design of lattice helmet liners for better mitigation of TBI.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><pmid>31627837</pmid><doi>10.1016/j.jbiomech.2019.109376</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0001-5678-5124</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of biomechanics, 2019-12, Vol.97, p.109376-109376, Article 109376 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete; ProQuest Central |
| subjects | Accidents Additive manufacturing Brain Cell size Computer simulation Density FEM Finite element method Graded lattice Head injuries Helmet Helmets Injury prevention Lattice design Lattices Linings Mathematical models Motorcycles PPE Strain rate Studies TBI Topology Traumatic brain injury |
| title | The effects of topology and relative density of lattice liners on traumatic brain injury mitigation |
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