Establishment and verification of a head finite element model based on explosion injury

LI Tao; CHANG Lijun; CHEN Taiwei; LIU Junyuan; XIAO Songming; CAI Zhihua

doi:10.11883/bzycj-2024-0173

Volume 44 Issue 12

Dec. 2024

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Article Navigation > Explosion And Shock Waves > 2024 > 44(12): 121424

LI Tao, CHANG Lijun, CHEN Taiwei, LIU Junyuan, XIAO Songming, CAI Zhihua. Establishment and verification of a head finite element model based on explosion injury[J]. Explosion And Shock Waves, 2024, 44(12): 121424. doi: 10.11883/bzycj-2024-0173

Citation:

LI Tao, CHANG Lijun, CHEN Taiwei, LIU Junyuan, XIAO Songming, CAI Zhihua. Establishment and verification of a head finite element model based on explosion injury[J]. Explosion And Shock Waves, 2024, 44(12): 121424. doi: 10.11883/bzycj-2024-0173

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Establishment and verification of a head finite element model based on explosion injury

doi: 10.11883/bzycj-2024-0173

Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China

Received Date: 2024-06-05
Rev Recd Date: 2024-10-23

Available Online: 2024-11-05

Publish Date: 2024-12-01

Abstract

Abstract

In order to better understand the mechanical response and injury mechanism of the head under the action of explosive shock wave, the geometric information of the head was obtained through computerized tomography and magnetic resonance imaging, and a finite element model of the head with fine cranial bone and brain tissue was developed. Based on the existing blast tube cadaver experiments, forward, side, and backward explosive shock numerical simulations were conducted, and the cranial pressure-time history curves and peak cranial pressure were compared to validate the finite element model. The results show that the peak pressures of the four regions in the cranium under the three impact directions are in good agreement with the experimental and simulated data in the literature; there is obvious stress concentration at the suture line of the cranial bone in the simulated blast simulation; the head has a greater risk of injury at the suture line; and the front and back impacts cause more serious head injuries than the side impact under the same explosive shock intensity. The head model established can be used in the study of head injury under explosive loading, and the influence of suture on the biomechanical response of the head can be explored, which has important research significance for blast injury research.
- explosion,
- finite element model,
- model verification,
- biomechanics,
- intracranial pressure

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References

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