Nondestructive Inspection and Quantification of Select Interface Defects in Honeycomb Sandwich Panels
Abstract
:1. Introduction
2. Materials and Methods
2.1. Manufacturing Method
2.2. Inspection Methodology
2.2.1. Ultrasound Methodology
2.2.2. Scanning System Set Up—Immersion Tank Inspection
2.2.3. Scanning System Set Up—Portable System (Out-of-Tank) Inspection
2.3. Data Reduction Methodology
3. Results
3.1. Defect Size Study
3.2. Defect Type Study
3.3. High-Resolution Capability and Variations in Adhesive Layer
3.4. Comparison between Portable Inspection System and Immersion Inspection System
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Coupon Identifier | Defect Type | Diameter (mm) from Microscopy |
---|---|---|
1 | Missing Adhesive | 7.9 |
2 | Missing Adhesive | 19.0 |
3 | Missing Adhesive | 40.8 |
4 | Kapton Film | 4.7 |
5 | Kapton Film | 20.0 |
6 | Kapton Film | 40.3 |
7 | Hole | 5.7 |
8 | Hole | 18.8 |
9 | Hole | 34.8 |
10 | PTFE Film | 5.0 |
11 | PTFE Film | 20.0 |
12 | PTFE Film | 40.4 |
13 | Crushed Hole | 6.4 |
14 | Crushed Hole | 19.3 |
15 | Crushed Hole | 35.5 |
Coupon | Defect Type | Diameter (mm) Microscopy | Diameter (mm) UT Results | Error (mm) |
---|---|---|---|---|
1 | Missing Adhesive | 7.9 | 8.3 | 0.4 |
2 | Missing Adhesive | 19.0 | 19.2 | 0.2 |
3 | Missing Adhesive | 40.8 | 41.1 | 0.3 |
4 | Kapton Film | 4.7 | 5.1 | 0.4 |
5 | Kapton Film | 20.0 | 21.3 | 1.3 |
6 | Kapton Film | 40.3 | 40.8 | 0.5 |
7 | Hole | 5.7 | 6.3 | 0.6 |
8 | Hole | 18.8 | 18.4 | 0.4 |
9 | Hole | 34.8 | 35.0 | 0.2 |
10 | PTFE Film | 5.0 | 4.2 | 0.8 |
11 | PTFE Film | 20.0 | 20.5 | 0.5 |
12 | PTFE Film | 40.4 | 41.3 | 0.9 |
13 | Crushed Hole | 6.4 | 7.2 | 0.8 |
14 | Crushed Hole | 19.3 | 19.1 | 0.2 |
15 | Crushed Hole | 35.5 | 34.3 | 1.2 |
Coupon | Defect Type | Diameter (mm) Microscopy | Diameter (mm) Immersion UT Results |
Diameter (mm) Portable UT Results |
---|---|---|---|---|
2 | Missing Adhesive | 19.0 | 19.2 | 20.3 |
5 | Kapton Film | 20.0 | 21.3 | 20.34 |
8 | Hole | 18.8 | 18.4 | 17.07 |
11 | PTFE Film | 20.0 | 20.5 | 18.7 |
14 | Crushed Hole | 19.3 | 19.1 | 18.58 |
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Khademi, M.; Pulipati, D.P.; Jack, D.A. Nondestructive Inspection and Quantification of Select Interface Defects in Honeycomb Sandwich Panels. Materials 2024, 17, 2772. https://doi.org/10.3390/ma17112772
Khademi M, Pulipati DP, Jack DA. Nondestructive Inspection and Quantification of Select Interface Defects in Honeycomb Sandwich Panels. Materials. 2024; 17(11):2772. https://doi.org/10.3390/ma17112772
Chicago/Turabian StyleKhademi, Mahsa, Daniel P. Pulipati, and David A. Jack. 2024. "Nondestructive Inspection and Quantification of Select Interface Defects in Honeycomb Sandwich Panels" Materials 17, no. 11: 2772. https://doi.org/10.3390/ma17112772