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首页> 外文期刊>Computer Methods and Programs in Biomedicine: An International Journal Devoted to the Development, Implementation and Exchange of Computing Methodology and Software Systems in Biomedical Research and Medical Practice >Finite element modelling of paediatric head impact: Global validation against experimental data
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Finite element modelling of paediatric head impact: Global validation against experimental data

机译：儿科头部冲击的有限元建模：针对实验数据的整体验证

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摘要

Biomechanics of the human head has been widely studied for several decades. At a mechanical level, the use of engineering and finite element (FE) methods has allowed injury mechanisms to be investigated using biofidelic FE models. These models are generally validated using experimental data then used to simulate real-world head trauma in order to derive numerical tolerance limits, leading to efficient injury predicting tools. Due to ethical issues, experimental tests on the paediatric population remain prohibitive so direct validations of numerical models cannot be performed. However injury biomechanics on paediatric population is emerging with experimental tests on the paediatric cadavers or tests on biological tissue and the development of finite element models. The present paper proposes a new finite element model of a newborn head, simulating its main features, with material properties from the literature. Global validation of the model against experimental data in terms of skull deflection is performed and the model is used to simulate paediatric skull fracture coming from real-world head trauma.
机译：人类头部的生物力学已经被广泛研究了几十年。在机械层面上，工程和有限元（FE）方法的使用已允许使用生物弹性有限元模型研究损伤机制。通常使用实验数据对这些模型进行验证，然后将其用于模拟现实世界中的头部创伤，以得出数值公差极限，从而形成有效的损伤预测工具。由于道德问题，对儿科人群的实验测试仍然令人望而却步，因此无法直接对数值模型进行验证。然而，随着对儿科尸体的实验测试或对生物组织的测试以及有限元模型的发展，对儿科人群的伤害生物力学正在兴起。本文提出了一种新的新生儿头部有限元模型，通过参考文献中的材料特性，模拟了其主要特征。针对实验数据对模型进行了全局验证，涉及颅骨偏斜，并且该模型用于模拟来自现实世界中头部创伤的小儿颅骨骨折。

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