Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4911716 | Composite Structures | 2017 | 22 Pages |
Abstract
The early detection of delamination cracks, which compromise the compressive strength of carbon-fiber-reinforced polymer (CFRP) laminates, is necessary to guarantee the integrity of CFRP structures. In this study, a simple analysis method for calculating the changes in the electric potential induced by delamination cracks in CFRP laminates is proposed for three-dimensional structures. First, a three-dimensional orthotropic doublet potential function is newly defined to simulate the delamination cracks. This function is then combined with a simple electric current analysis technique, specifically, the orthotropic electric potential function method. This novel method can be applied in a practical nondestructive detection technique to determine the location and size of delamination cracks. Comparison with results obtained using the commonly used finite-element method demonstrates the effectiveness of the proposed simple analysis method for calculating changes in electric potential.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Takuya Yamane, Akira Todoroki,