Determination of the mechanical properties distribution of the sample by tomography data
Determination of the mechanical properties distribution of the sample by tomography data
复制标题
通过断层扫描数据确定样品的机械性能分布
DOI：
10.1088/1742-6596/1158/2/022046
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
O. Sachenkov
中科院分区：
文献类型：
--
作者：
O. Gerasimov;N. Kharin;O. Vorob’yev;E. Semenova;O. Sachenkov
在解决多孔结构应力应变状态的确定问题时，应考虑材料的结构特性。描述多孔介质的微观结构是非均匀力学的重要内容。自然实验是昂贵的，这就是为什么现在流行使用计算机断层扫描数据进行模拟。这些研究提出了确定物体的机械和微观结构特性分布的方法。在多孔样品上测试方法。研究了冷固化Lasilcast两相液体聚氨酯塑料。通过Vatech PaX-I 3D扫描生产的多孔样品。接收到的数据通过子体积进行网格划分。对于每个子体积孔隙度，计算组构张量和弹性张量。对实验结果进行了分析，并与自然实验结果进行了比较。
Structural characteristics of the material should be taken into account while the problems of determining the stress-strain state of porous structures are solved. Describing microstructure of porous media is important for inhomogeneous mechanics. Natural experiments are expensive, that’s why nowadays it is popular to use simulation with computer tomography data. These study presents methods to determine mechanical and microstructural properties distribution of the object. Methods were tested on porous samples. Two-phase liquid polyurethane plastics of cold curing Lasilcast was used in research. Produced porous samples was scanned by Vatech PaX-I 3D. Received data were mesh by subvolumes. For every subvolume porosity, fabric tensor and elasticity tensor were calculated. Results were analyzed and compared with natural experiments.