Poroelastic Model of Intraluminal Thrombus in FEA of Aortic Aneurysm
Poroelastic Model of Intraluminal Thrombus in FEA of Aortic Aneurysm
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主动脉瘤有限元分析中腔内血栓的多孔弹性模型
DOI：
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发表时间：
2010
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通讯作者：
J. Burša
中科院分区：
文献类型：
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作者：
S. Polzer;J. Burša
腔内血栓（ILT）对腹主动脉瘤（AAA）生物力学的影响已经研究了几年的数值和实验。迄今为止发表的有限元分析将ILT的材料简化为均匀连续体，但实验和有限元结果之间存在矛盾。因此，我们使用孔隙弹性本构模型ILT。所用有限元的孔隙弹性行为是基于毕奥固结理论，该模型由流体和固体部分。
The influence of the intraluminal thrombus (ILT) on the biomechanics of the abdominal aortic aneurysm (AAA) has been investigated for several years both numerically and experimentally. The FE analyses published till now simplified the material of the ILT as a homogenous continuum, but there is a contradiction between experiments and FE results. Therefore we use a poroelastic constitutive model for ILT. Poroelastic behaviour of the used finite element is based on the Biot theory of consolidation, the model consists of fluid and solid parts.