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Electric Current Analysis of CFRP using Perfect Fluid Potential Flow

机译：使用理想流体势流的CFRP电流分析

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摘要

A new analytical method to calculate the electric current density between two probes in carbon-fiber-reinforced plastic (CFRP) is presented. Unidirectional CFRP has strongly orthotropic electric conductance. Even when electric current is applied to a CFRP plate using two probes on a single surface, the electric current density is not uniform along the cross-section. The electric current is concentrated near the surface where an electric current is applied. Although it is important to know the electric current density in the CFRP plate for the analysis of lightning effects, the density is difficult to calculate using a three-dimensional finite element model. In the present study, the orthotropic coordinate is transformed into a uniform coordinate. Laplace's equation is solved using the potential theory for a perfect fluid. Equations solved employing an infinite-body approximation are verified with a finite element model. As a result, the new analysis method is demonstrated to be efficient for unidirectional CFRP. The limitations of the method are also discussed.
机译：提出了一种计算碳纤维增强塑料（CFRP）中两个探针之间电流密度的新分析方法。单向CFRP具有很强的正交各向异性电导。即使当在单个表面上使用两个探针将电流施加到CFRP板上时，电流密度沿横截面也不均匀。电流集中在施加电流的表面附近。尽管了解CFRP板中的电流密度对于分析雷电影响很重要，但使用三维有限元模型很难计算出该密度。在本研究中，正交异性坐标转换为均匀坐标。拉普拉斯方程使用势能理论求解，以求出理想流体。使用有限元模型对采用无穷体近似法求解的方程进行验证。结果，新的分析方法被证明对于单向CFRP是有效的。还讨论了该方法的局限性。

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