Simulation of Non-penetrating Damage of Head due to Bullet Impact to Helmet

doi:10.3969/j.issn.1000-1093.2017.06.008

Abstract

Abstract: New ballistic helmet can provide good protection for human head. The head injury caused by ballistic impact has not been well understood. There is a lack of relevant test procedure to evaluate the efficiency of a ballistic helmet. The head model is validated against several impact tests on cadavers, and the helmet model is validated against data from shooting tests. The mechanical response of the helmet to the human head under non-penetration of helmet is obtained through the simulation of the ballistic helmet with 386 m/s impact speed of bullet. The simulated results show that the deformation of the back of helmet can lead to skull fracture and high intracranial pressure. The influences of helmets with and without foam pad, as well as foam pad thickness on the head injury are compared and analyzed. The results show that, by using the helmet with foam pad, the intracranial pressure of head wearing a helmet with foam poad is reduced by 20.6%, and the deformation of helmet with foam poad is reduced by 10%. The skull was still under high-risk of skull fracture with 6 mm foam pad. With 12 mm foam pad, the intracranial pressure is decreased by 50%, and the deformation of the back of helmet is decreased by 10%. Key

Key words: ordnancescienceandtechnology, ballistichelmets, behindarmorballistictrauma, skullfracture, protection

CLC Number:

TJ012.4

CAI Zhi-hua, BAO Zheng, WANG Wei, MAO Zheng-yu. Simulation of Non-penetrating Damage of Head due to Bullet Impact to Helmet[J]. Acta Armamentarii, 2017, 38(6): 1097-1105.

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第38卷
第6期2017 年6月兵工学报ACTA
ARMAMENTARIIVol.38No.6Jun.2017

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