| 000 | 02854nam a2200265Ia 4500 | ||
|---|---|---|---|
| 003 | MX-MdCICY | ||
| 005 | 20250625162434.0 | ||
| 040 | _cCICY | ||
| 090 | _aB-19619 | ||
| 245 | 1 | 0 | _aDamage detection in non-planar carbon fiber-reinforced polymer laminates via electrical impedance tomography with surface-mounted electrodes and directional sensitivity matrices |
| 490 | 0 | _vComposites Science and Technology, 224, p.109429, 2022 | |
| 520 | 3 | _aCarbon fiber reinforced polymers (CFRPs)have emerged as promising alternatives to traditional metals and alloys in weight-conscious applications such as aerospace due to their superior strength-to-weight properties. However, these materials are vulnerable to complex and difficult-to-predict sub-surface damages. Therefore, damage detection modalities are important for assuring the safety of CFRP-based structures and components. Particularly for in-service structural health monitoring (SHM), it would be desirable to utilize an inherent property of these materials, such as electrical conductivity, as a means of detecting and localizing damages. In this respect, electrical impedance tomography (EIT)is a promising SHM modality. Studies to-date involving the application of EIT to CFRPs are limited due to the challenges associated with high electrical anisotropy. Furthermore, most studies have only considered flat laminates with unrealistic edge-placed electrodes. In this paper, we advance the state of the art by studying the application of EIT to non-planar CFRP geometries using surface-mounted electrodes. Additionally, we present a modified EIT sensitivity matrix formulation which intrinsically incorporates the electrical anisotropy of the material by forming the sensitivity matrix via three approaches - with respect to i)a scalar multiple of the conductivity tensor, ii)the in-plane conductivity, and iii)the through-thickness conductivity. It was found that both through-hole and impact damages can be adeptly identified with a combination of surface-mounted electrodes and a sensitivity matrix formed with respect to either a scalar multiple of the conductivity tensor or the in-plane conductivity. The results presented here are an important step towards the transition of EIT-based diagnostics to actual CFRP structures. | |
| 650 | 1 | 4 | _aCARBON FIBER REINFORCED POLYMER (CFRP) |
| 650 | 1 | 4 | _aDAMAGE DETECTION |
| 650 | 1 | 4 | _aELECTRICAL IMPEDANCE TOMOGRAPHY |
| 650 | 1 | 4 | _aSTRUCTURAL HEALTH MONITORING |
| 650 | 1 | 4 | _aELECTRICAL ANISOTROPY |
| 700 | 1 | 2 | _aSannamani, M. |
| 700 | 1 | 2 | _aGao, J. |
| 700 | 1 | 2 | _aChen, W. W. |
| 700 | 1 | 2 | _aTallman, T. N. |
| 856 | 4 | 0 |
_uhttps://drive.google.com/file/d/1YfdYO7pocZTE0Vf1gmhLEOJrq0TFo_xY/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 |
_2Loc _cREF1 |
||
| 008 | 250602s9999 xx |||||s2 |||| ||und|d | ||
| 999 |
_c53742 _d53742 |
||