Development of an Injury Risk Function for the Anterior Pelvis Under Frontal Lap Belt Loading Conditions
Abstract Iliac wing fractures due to lap belt loading have been identified in laboratory tests for almost 50 years and an analysis of recent data suggests these injuries are also occurring in the field. With the introduction of highly autonomous vehicles on the horizon, vehicle manufacturers are exploring open cabin concepts that permit reclined postures and separation of the occupant from the knee bolster and instrument panel. This will result in greater reliance on the lap belt and lap belt/pelvis loading to restrain occupants. No injury criteria exist for iliac wing fractures resulting from lap belt loading like that seen in frontal crash conditions. This study tested the tolerance of isolated iliac wings in a controlled lap belt-like loading environment while incorporating the effect of loading angle after analyzing lap belt loading experiments from a previous study. Twenty-two iliac wings were tested; nineteen of them sustained fracture (exact), but the loading input was insufficient to cause fracture in the other three (right censored). The fracture tolerance of the tested specimens ranged widely (1463–8895 N) and averaged 4091 N (SD 2381 N). Injury risk functions were created by fitting Weibull survival models to data that integrated censored and exact failure observations..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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| Enthalten in: |
Annals of biomedical engineering - 51(2023), 9 vom: 05. Juli, Seite 1942-1949 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Moreau, David [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
Biomechanics |
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| Anmerkungen: |
© The Author(s) under exclusive licence to Biomedical Engineering Society 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s10439-023-03244-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC214489857X |
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| 520 | |a Abstract Iliac wing fractures due to lap belt loading have been identified in laboratory tests for almost 50 years and an analysis of recent data suggests these injuries are also occurring in the field. With the introduction of highly autonomous vehicles on the horizon, vehicle manufacturers are exploring open cabin concepts that permit reclined postures and separation of the occupant from the knee bolster and instrument panel. This will result in greater reliance on the lap belt and lap belt/pelvis loading to restrain occupants. No injury criteria exist for iliac wing fractures resulting from lap belt loading like that seen in frontal crash conditions. This study tested the tolerance of isolated iliac wings in a controlled lap belt-like loading environment while incorporating the effect of loading angle after analyzing lap belt loading experiments from a previous study. Twenty-two iliac wings were tested; nineteen of them sustained fracture (exact), but the loading input was insufficient to cause fracture in the other three (right censored). The fracture tolerance of the tested specimens ranged widely (1463–8895 N) and averaged 4091 N (SD 2381 N). Injury risk functions were created by fitting Weibull survival models to data that integrated censored and exact failure observations. | ||
| 650 | 4 | |a Survival analysis | |
| 650 | 4 | |a PMHS testing | |
| 650 | 4 | |a Frequentist statistics | |
| 650 | 4 | |a Biomechanics | |
| 650 | 4 | |a Highly automated vehicles | |
| 650 | 4 | |a Fracture tolerance | |
| 700 | 1 | |a Chernyavskiy, Pavel |4 aut | |
| 700 | 1 | |a Sochor, Sara |4 aut | |
| 700 | 1 | |a Gepner, Bronislaw |4 aut | |
| 700 | 1 | |a Forman, Jason |4 aut | |
| 700 | 1 | |a Östling, Martin |4 aut | |
| 700 | 1 | |a Kerrigan, Jason R. |0 (orcid)0000-0002-9676-7286 |4 aut | |
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