Performance Assessment of Induction Thermography Technique Applied to Carbon-Fiber-Reinforced Polymer Material
Performance Assessment of Induction Thermography Technique Applied to Carbon-Fiber-Reinforced Polymer Material
复制标题
感应热成像技术应用于碳纤维增强聚合物材料的性能评估
DOI：
10.1109/tmag.2014.2363079
复制
发表时间：
2015
影响因子：
2.1
通讯作者：
G. Berthiau
中科院分区：
文献类型：
--
作者：
H. Bui;G. Wasselynck;D. Trichet;G. Berthiau
建立了用于碳纤维增强聚合物复合材料无损检测的感应热像仪缺陷检测能力评价模型。为了克服这一大尺度因素，采用了一种均匀化方法。将得到的均匀电导率用于三维多层有限元模型。采用六面体单元对问题进行离散化，以解决薄域和强各向异性区域数值模拟中四面体单元的数值不稳定性问题。同时考虑了感应线圈内的电流分布，提高了求解的精度。通过与实测值的比较，对数值模型进行了验证。文中还将讨论用感应热像仪模拟无损检测的情况。
In this paper, a model is built to evaluate the flaw detection capacity of the induction thermography applied to nondestructive testing (NDT) of carbon-fiber-reinforced polymer composite. A homogenization approach is used to overcome the large-scale factor. The homogenized electric conductivity obtained is used in a 3-D multilayer finite element model. The problem is discretized by hexahedral element to deal with the numeric instability of tetrahedron element in the modeling of thin and strongly anisotropic domain. The distribution of current in the induction coil is also considered to improve the accuracy of the solution. Numerical model is then validated by comparison with measurement. Simulation of an NDT case with induction thermography will be discussed.