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- Aare, MagnusKTH,Farkost- och flygteknik (author)
Injury tolerances for oblique impact helmet testing
- Article/chapterEnglish2004
Publisher, publication year, extent ...
- Informa UK Limited,2004
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-23144
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-23144URI
- https://doi.org/10.1533/ijcr.2004.0268DOI
- http://kipublications.ki.se/Default.aspx?queryparsed=id:1951935URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20100525 QC 20111031
- The most frequently sustained severe injuries in motorcycle crashes are injuries to the head, and many of these are caused by rotational force. Rotational force is most commonly the result of oblique impacts to the head. Good testing methods for evaluating the effects of such impacts are currently lacking. There is also a need for improving our understanding of the effects of oblique impacts on the human head. Helmet standards currently in use today do not measure rotational effects in test dummy heads. However rotational force to the head results in large shear strains arising in the brain, which has been proposed as a cause of traumatic brain injuries like diffuse axonal injuries (DAI). This paper investigates a number of well-defined impacts, simulated using a detailed finite element (FE) model of the human head, an FE model of the Hybrid III dummy head and an FE model of a helmet. The same simulations were performed on both the FE human head model and the FE Hybrid III head model, both fitted with helmets. Simulations on both these heads were performed to describe the relationship between load levels in the FE Hybrid III head model and strains in the brain tissue in the FE human head model. In this study, the change in rotational velocity and the head injury criterion (HIC) value were chosen as appropriate measurements. It was concluded that both rotational and translational effects are important when predicting the strain levels in the human brain.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
- injury tolerances
- oblique impacts
- helmet
- head injuries and FE (finite element)
- diffuse axonal injury
- human head
Added entries (persons, corporate bodies, meetings, titles ...)
- Kleiven, SveinKTH,Farkost- och flygteknik(Swepub:kth)u1aqbjml (author)
- Halldin, PeterKTH,Farkost- och flygteknik(Swepub:kth)u1dqoxa0 (author)
- KTHFarkost- och flygteknik (creator_code:org_t)
Related titles
- In:International Journal of Crashworthiness: Informa UK Limited9:1, s. 15-231358-82651754-2111
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