A Simulation Study of Spine Biofidelity in the Hybrid-III 6-Year-Old ATD

Wu, Jun; Cao, Liqun; Reed, Matthew P.; Hu, Jingwen

doi:10.1080/15389588.2012.725260

Cited by 3 publications

(2 citation statements)

References 14 publications

(28 reference statements)

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“…where (see (8)) is the mass scaling factor and is the stiffness scaling factor (see (2)). The characteristic length (CL) involves summing the head circumference (HC), head breadth, and head length (see (7)) for each size and taking their ratios [21].…”

Section: Biomechanical Response Scalingmentioning

confidence: 99%

“…PMHS data was scaled to 6YO using scaling factors and the ATD predicted displacement well but differences in torso flexion were noticed because of stiffer ATD spine. Wu et al [8] modified the spine biofidelity of HIII 6YO ATD by adding joint at thoracic spine region to reduce translation characteristics of cervical and lumbar spine and validation was carried out against cadaver and volunteer test reconstructions. Hu et al [9] modified 6YO HIII dummy abdomen design to simulate and predict submarining suffered by young children.…”

Section: State Of the Artmentioning

confidence: 99%

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A Modified Hybrid III 6-Year-Old Dummy Head Model for Lateral Impact Assessment

Rafukka

Sahari

Aziz

et al. 2016

International Journal of Vehicular Technology

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Hybrid III six-year-old (6YO) child dummy head model was developed and validated for frontal impact assessment according to the specifications contained in Code of Federal Regulations, Title 49, Part 572.122, Subpart N by Livermore Software Technology Corporation (LSTC). This work is aimed at improving biofidelity of the head for frontal impact and also extending its application to lateral impact assessment by modifying the head skin viscoelastic properties and validating the head response using the scaled nineyear-old (9YO) child cadaver head response recently published in the literature. The modified head model was validated for two drop heights for frontal, right, and left parietal impact locations. Peak resultant acceleration of the modified head model appeared to have good correlation with scaled 9YO child cadaver head response for frontal impact on dropping from 302 mm height and fair correlation with 12.3% difference for 151 mm drop height. Right parietal peak resultant acceleration values correlate well with scaled 9YO head experimental data for 153 mm drop height, while fair correlation with 16.4% difference was noticed for 302 mm drop height. Left parietal, however, shows low biofidelity for the two drop heights as the difference in head acceleration response was within 30%. The modified head model could therefore be used to estimate injuries in vehicle crash for head parietal impact locations which cannot be measured by the current hybrid III dummy head model.

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Section: Biomechanical Response Scalingmentioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%