| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Evaluation Marcelling in Composites Using Ultrasonic Guided Wave |
| Author(s) |
Sourav Banerjee, Will Ward, Ana Tudor, Evelyn Atkins, Darun Barazanchy, Joshua Widawsky, Paul Ziehl |
| On-Site Speaker (Planned) |
Sourav Banerjee |
| Abstract Scope |
Thermoplastic composite (TPC) material seldom manifests in-plane fiber waviness during manufacturing. In-plane fiber waviness is called Marcelling and may compromise the composite strength and performance. Marcelling is not only a surface defect but can extend along the thickness (partially or completely) of a composite structure. There is no established nondestructive evaluation (NDE) method to detect and quantify Marcelling in composite. Ultrasonic guided waves can saturate the complete thickness of a composite structure. Thus, physics of guided wave creates an opportunity to detect and quantify the marcelling in composites. Before guided waves could be used to detect marcelling, it is necessary to quantify the marcelling in the structure and identify the marcelling affected zones (MAZE). Hence, in this research first, high frequency scanning acoustic microscopy (SAM) was performed to quantify the marcelling and statistical distribution of the defects at different MAZE was obtained. Next each MAZE with known statistical distribution of quantified marcelling (marcelling wavelength and marcelling amplitude) was inspected using ultrasonic guided wave setup specially created at i-MAPS. guided wave inspection was performed at different angles with respect to the direction of fiber waviness and effect of marcelling on guided wave signal was evaluated and documented. The method quantified the guided wave feature as a function of quantitative degree of marcelling. The overarching objective of this research is to implement post process NDE inspection of TPC large structures where in plane fiber waviness or marcelling can be detected and MAZEs could be identified. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |