Smoothed particle hydrodynamics-based simulation of blast injuries in human mandible

Shuai XU; Junjie HUANG; Gang ZHANG; Yinghui TAN

doi:10.16016/j.1000-5404.202005088

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Smoothed particle hydrodynamics-based simulation of blast injuries in human mandible

Military Medicine | 更新时间：2026-01-09

- Smoothed particle hydrodynamics-based simulation of blast injuries in human mandible
- Journal of Third Military Medical University Vol. 42, Issue 20, Pages: 1971-1977(2020)
- 作者机构：
  
  400037 重庆，陆军军医大学(第三军医大学)第二附属医院口腔科
- 作者简介：
- 基金信息：
  
  the Key Project of the Twelfth Five-Year Plan of PLA(BGZ1500J001);the National Natural Science Foundation for Young Scholars of China(8160873);the Major Innovative Technology Development Program of Second Affiliated Hospital of Army Medical University(2018JSLC0022)
- DOI：10.16016/j.1000-5404.202005088
  CLC： R319;R642;R782.4
- Received：12 May 2020，
  
  Revised：2020-08-03，
  
  Published：30 October 2020
- 稿件说明：
移动端阅览
Shuai XU, Junjie HUANG, Gang ZHANG, et al. Smoothed particle hydrodynamics-based simulation of blast injuries in human mandible[J]. Journal of Third Military Medical University, 2020, 42(20): 1971-1977.
DOI：

Shuai XU, Junjie HUANG, Gang ZHANG, et al. Smoothed particle hydrodynamics-based simulation of blast injuries in human mandible[J]. Journal of Third Military Medical University, 2020, 42(20): 1971-1977. DOI： 10.16016/j.1000-5404.202005088.

摘要

目的

建立人下颌软硬组织爆炸伤光滑粒子流体动力学模型，分析人下颌软硬组织爆炸伤致伤过程及生物力学特点。

方法

采集人颌面部CT和MRI数据，建立包含人下颌骨、咬肌软硬组织爆炸伤光滑粒子流体动力学模型，并通过与三维有限元的爆炸伤模型对比研究，分析该模型在爆炸伤研究中的有效性。

结果

建立的咬肌-下颌骨光滑粒子流体动力学模型粒子数为4 538，与人解剖结构相似，细节损失少，模拟了爆炸冲击波对下颌骨、咬肌的损伤情况，爆炸导致左侧下颌角、髁状突骨折，咬肌广泛撕裂损伤，该仿真结果与三维有限元仿真结果接近。

结论

在颌面部软硬组织爆炸伤中，光滑粒子流体动力学研究方法相对于三维有限元研究方法在组织大变形、裂纹扩展、爆炸冲击等方面具有显著优势，可作为颌面部爆炸伤模型研究的新方法。

Abstract

Objective

To establish a smoothed particle hydrodynamics (SPH) model for simulating the process and biomechanical characteristics of blast injuries in human mandible.

Methods

Based on computed tomography and magnetic resonance imaging (MRI) data of the maxillofacial region in human

we established a SPH model of blast injuries in the mandible and masseter muscles and assessed its validity by comparison with a three-dimensional finite element model (FEM).

Result

The number of particles in the SPH model of mandible is 4 538

which is similar to anatomical structure of human

with less loss of details. The SPH model simulates the explosion damage of mandible and masseter caused by blast wave. The explosion results in the fractures in the left mandibular angle and condyle

and extensively torn in the masseter muscle is. The simulation results are close to the FEM.

Conclusion

Compared with the FEM model

the SPH model shows obvious advantages in simulating large tissue deformation

crack growth and explosion impact on the mandible

and provides a new method for studying maxillofacial blast injuries.

关键词

Keywords

references

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