Failure analysis of seat belt buckle inertial release

Roberts, A.; Partain, M; Batzer, Stephen A.; Renfroe, David A.

doi:10.1016/j.engfailanal.2006.11.059

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…Seat belt failure cases described in the literature focus on damage of the polymer fibres subject to degradation processes [10,11], disintegration of the fastener mechanisms [6,8,21] or poor quality of the attachment points to the vehicle body [12]. In addition, an extensive part of the available research results describe medical aspects of postaccident injuries and accident statistics related to passive safety [5,13,19,20,22,23].…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of construction materials used for fastening elements of six-point safety belts in rally cars

Dziubek¹,

Grygier²

2022

Combustion Engines

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Safety belts are one of the most significant elements of car equipment classified as passive safety. This paper provides a comparative material analysis of critical components of a trusted manufacturer's six-point harness used in motorsports racing with commercially available imitation belts. Despite the FIA certification labels, the imitation belts are characterized by extremely poor quality in the selection of materials for components such as the snap hooks and the locking sleeves in the central fastening mechanism, posing a real hazard to unaware belt users. At the same time, the results of the research are also intended to build consumer awareness of the risks associated with the purchase of passive safety equipment from unreliable sources or/and at discount prices, which entails real threats to life and health.

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Section: Introductionmentioning

confidence: 99%

Comparative analysis of construction materials used for fastening elements of six-point safety belts in rally cars

Dziubek¹,

Grygier²

2022

Combustion Engines

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“…There are two plausible mechanisms to explain such an occurrence: either the seat belt stayed buckled and the webbing was intact and the occupant was ejected regardless or the seat belt buckle or webbing failed in some way, allowing for occupant ejection that would not have otherwise occurred. In some cases belt failure is due to a design or other fault in the latching mechanism . In such an instance, there could be the seemingly contradictory finding of a webbing‐related injury pattern in an ejected occupant and no vehicular evidence of seat belt use or failure, such as a latched buckle or torn webbing.…”

mentioning

confidence: 99%

Injury Pattern as an Indication of Seat Belt Failure in Ejected Vehicle Occupants

Freeman

Eriksson

Leith

2014

Journal of Forensic Sciences

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Prior authors have suggested that when occupant ejection occurs in association with a seat belt failure, entanglement of the outboard upper extremity (OUE) with the retracting shoulder belt will invariably occur, leaving injury pattern evidence of belt use. In the present investigation, the authors assessed this theory using data accessed from the NASS-CDS for ejected front seat occupants of passenger vehicles. Logistic regression models were used to assess the associations between seat belt failure status and injuries. Injury types associated with seat belt failure were significant OUE and head injuries (OR = 3.87, [95% CI 1.2, 13.0] and 3.1, [95% CI 1.0, 9.7], respectively). The two injury types were found to be a predictor of seat belt use and subsequent failure only if combined with a high (≥0.8) precrash probability of belt use. The injury pattern associated with a seat belt failure-related ejection has limited use in the forensic investigation of crash-related ejections.

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