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Development and commissioning of an instrumented pneumatic device to simulate blunt- and sharp-force trauma.

Abstract：

:Forensic investigators commonly interpret bone fracture patterns to estimate the force required to generate that trauma. Unfortunately, these estimates are limited to qualitative values such as "mild", "moderate" or "extreme" force. This work presents a new experimental forensic device developed to simulate blunt- and sharp-force trauma injuries, while recording the forces and velocities involved, so that a more quantitative relationship between force and trauma can be established. The machine design is described in some detail, its capabilities are outlined, and the results of the commissioning and validation tests are presented. Preliminary results for both blunt- and sharp-force testing of porcine ribs, conducted at 3.8m/s, indicate the average peak force (733±95N versus 392±73N), average force (334±49N versus 101±24N), and work (2.34±0.26J versus 0.68±0.09J) are significantly higher in the blunt case. The experimental data generated by this instrumented device will allow forensic investigators to create a better quantitative link between incident conditions (velocity, force, work) and the resulting fracture patterns.

journal_name

Forensic Sci Int

journal_title

Forensic science international

authors

Gaudet JR,Lievers WB,Fairgrieve SI

doi

10.1016/j.forsciint.2019.110123

subject

Has Abstract

pub_date

2020-02-01 00:00:00

pages

110123

eissn

0379-0738

issn

1872-6283

pii

S0379-0738(19)30535-3

journal_volume

307

pub_type

杂志文章

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