【摘要】：用Instron5544萬(wàn)能材料試驗(yàn)機(jī)對(duì)豬眼外肌樣本進(jìn)行單軸拉伸實(shí)驗(yàn),獲得相應(yīng)的應(yīng)力-應(yīng)變關(guān)系曲線,然后用Mooney-Rivilin和Ogden超彈性模型對(duì)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行非線性擬合。利用得到的Mooney-Rivilin和Ogden模型的材料特性參數(shù),在ABAQUS軟件中建立有限元模型對(duì)眼外肌進(jìn)行模擬,以驗(yàn)證Mooney-Rivilin和Ogden模型的材料特性參數(shù)用于數(shù)值建模的合理性。將模擬結(jié)果與實(shí)驗(yàn)結(jié)果進(jìn)行比較,發(fā)現(xiàn)Mooney-Rivilin本構(gòu)模型比Ogden本構(gòu)模型更適合于描述眼外肌的小變形行為。
[Abstract]:The uniaxial tensile test of pig extraocular muscle samples was carried out by instrument 5544 universal material testing machine, and the corresponding stress-strain relationship curve was obtained, and then the experimental data were fitted by Mooney-Rivilin and Ogden hyperelastic model. Using the material characteristic parameters of Mooney-Rivilin and Ogden models, the finite element model is established in ABAQUS software to simulate the extraocular muscles in order to verify the rationality of the material characteristic parameters of Mooney-Rivilin and Ogden models used in numerical modeling. By comparing the simulation results with the experimental results, it is found that the Mooney-Rivilin Constitutive Model is more suitable than the Ogden Constitutive Model for describing the small deformation behavior of extraocular muscles.
【作者單位】： 太原理工大學(xué)力學(xué)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金重點(diǎn)資助項(xiàng)目:眼球功能相關(guān)疾患治療機(jī)理的力學(xué)生物學(xué)研究(11032008) 國(guó)家自然科學(xué)青年基金項(xiàng)目:在體角膜材料生物力學(xué)特性研究及基于角膜微觀結(jié)構(gòu)的建模分析(11402161) 山西省重點(diǎn)教改項(xiàng)目(J2012014)
【分類號(hào)】：R318.01
，

本文編號(hào)：2475626