View in EDS

Potential Improvements in Shock-Mitigation Efficacy of a Polyurea-Augmented Advanced Combat Helmet.

Saved in:
Bibliographic Details
Title: Potential Improvements in Shock-Mitigation Efficacy of a Polyurea-Augmented Advanced Combat Helmet.
Authors: Grujicic, A.1, LaBerge, M.1, Grujicic, M.2 gmica@clemson.edu, Pandurangan, B.2, Runt, J.3, Tarter, J.4, Dillon, G.4
Source: Journal of Materials Engineering & Performance. Aug2012, Vol. 21 Issue 8, p1562-1579. 18p.
Abstract: The design of the currently used Advanced Combat Helmet (ACH) has been optimized to attain maximum protection against ballistic impacts (fragments, shrapnel, etc.) and hard-surface collisions. However, the ability of the ACH to protect soldiers against blast loading appears not to be as effective. Polyurea, a micro-segregated elastomeric copolymer has shown superior shock-mitigation capabilities. In the present work, a combined Eulerian/Lagrangian transient non-linear dynamics computational fluid/solid interaction analysis is used to investigate potential shock-mitigation benefits which may result from different polyurea-based design augmentations of the ACH. Specific augmentations include replacement of the currently used suspension-pad material with polyurea and the introduction of a thin polyurea internal lining/external coating to the ACH shell. Effectiveness of different ACH designs was quantified by: (a) establishing the main forms of mild traumatic brain injury (mTBI); (b) identifying the key mechanical causes for these injuries; and (c) quantifying the extents of reductions in the magnitude of these mechanical causes. The results obtained show that while the ACH with a 2-mm-thick polyurea internal lining displays the best blast mitigation performance, it does not provide sufficient protection against mTBI. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 77834508
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Potential Improvements in Shock-Mitigation Efficacy of a Polyurea-Augmented Advanced Combat Helmet.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Grujicic%2C+A%2E%22">Grujicic, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22LaBerge%2C+M%2E%22">LaBerge, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Grujicic%2C+M%2E%22">Grujicic, M.</searchLink><relatesTo>2</relatesTo><i> gmica@clemson.edu</i><br /><searchLink fieldCode="AR" term="%22Pandurangan%2C+B%2E%22">Pandurangan, B.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Runt%2C+J%2E%22">Runt, J.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Tarter%2C+J%2E%22">Tarter, J.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Dillon%2C+G%2E%22">Dillon, G.</searchLink><relatesTo>4</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Engineering+%26+Performance%22">Journal of Materials Engineering & Performance</searchLink>. Aug2012, Vol. 21 Issue 8, p1562-1579. 18p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The design of the currently used Advanced Combat Helmet (ACH) has been optimized to attain maximum protection against ballistic impacts (fragments, shrapnel, etc.) and hard-surface collisions. However, the ability of the ACH to protect soldiers against blast loading appears not to be as effective. Polyurea, a micro-segregated elastomeric copolymer has shown superior shock-mitigation capabilities. In the present work, a combined Eulerian/Lagrangian transient non-linear dynamics computational fluid/solid interaction analysis is used to investigate potential shock-mitigation benefits which may result from different polyurea-based design augmentations of the ACH. Specific augmentations include replacement of the currently used suspension-pad material with polyurea and the introduction of a thin polyurea internal lining/external coating to the ACH shell. Effectiveness of different ACH designs was quantified by: (a) establishing the main forms of mild traumatic brain injury (mTBI); (b) identifying the key mechanical causes for these injuries; and (c) quantifying the extents of reductions in the magnitude of these mechanical causes. The results obtained show that while the ACH with a 2-mm-thick polyurea internal lining displays the best blast mitigation performance, it does not provide sufficient protection against mTBI. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=77834508
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s11665-011-0065-3
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 1562
    Titles:
      – TitleFull: Potential Improvements in Shock-Mitigation Efficacy of a Polyurea-Augmented Advanced Combat Helmet.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Grujicic, A.
      – PersonEntity:
          Name:
            NameFull: LaBerge, M.
      – PersonEntity:
          Name:
            NameFull: Grujicic, M.
      – PersonEntity:
          Name:
            NameFull: Pandurangan, B.
      – PersonEntity:
          Name:
            NameFull: Runt, J.
      – PersonEntity:
          Name:
            NameFull: Tarter, J.
      – PersonEntity:
          Name:
            NameFull: Dillon, G.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: Aug2012
              Type: published
              Y: 2012
          Identifiers:
            – Type: issn-print
              Value: 10599495
          Numbering:
            – Type: volume
              Value: 21
            – Type: issue
              Value: 8
          Titles:
            – TitleFull: Journal of Materials Engineering & Performance
              Type: main
ResultId 1