Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting
Water trapped in sandwich honeycomb composites—due to defects, diffusion, or other factors—is a major concern, especially in aircraft maintenance. In this paper, we present a method based on acoustic emissions for the quick assessment of possible water ingress that can be performed when a structure...
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| Format: | Article |
| Language: | deu |
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NDT.net
2025-04-01
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| Series: | e-Journal of Nondestructive Testing |
| Online Access: | https://www.ndt.net/search/docs.php3?id=31070 |
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| author | Helge Pfeiffer Tian Xun Lin Jeroen Soete Johan Vanhulst Dimitrios Chronopoulos |
| author_facet | Helge Pfeiffer Tian Xun Lin Jeroen Soete Johan Vanhulst Dimitrios Chronopoulos |
| author_sort | Helge Pfeiffer |
| collection | DOAJ |
| description |
Water trapped in sandwich honeycomb composites—due to defects, diffusion, or other factors—is a major concern, especially in aircraft maintenance. In this paper, we present a method based on acoustic emissions for the quick assessment of possible water ingress that can be performed when a structure is exposed to freezing or melting conditions, such as during ascent or descent in high-altitude flights or after landing. A quantitative analysis, including exponential decay models and amplitude and frequency distributions, confirm that melting ice can be detected not only locally but also in its vicinity. The presented method is compared with respect to active ultrasonic transmission tests.
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| format | Article |
| id | doaj-art-dc6852dff49940c7a1dfc0f757bd7bee |
| institution | OA Journals |
| issn | 1435-4934 |
| language | deu |
| publishDate | 2025-04-01 |
| publisher | NDT.net |
| record_format | Article |
| series | e-Journal of Nondestructive Testing |
| spelling | doaj-art-dc6852dff49940c7a1dfc0f757bd7bee2025-08-20T02:16:21ZdeuNDT.nete-Journal of Nondestructive Testing1435-49342025-04-0130410.58286/31070Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or MeltingHelge Pfeifferhttps://orcid.org/0000-0003-0631-4978Tian Xun LinJeroen SoeteJohan VanhulstDimitrios Chronopoulos Water trapped in sandwich honeycomb composites—due to defects, diffusion, or other factors—is a major concern, especially in aircraft maintenance. In this paper, we present a method based on acoustic emissions for the quick assessment of possible water ingress that can be performed when a structure is exposed to freezing or melting conditions, such as during ascent or descent in high-altitude flights or after landing. A quantitative analysis, including exponential decay models and amplitude and frequency distributions, confirm that melting ice can be detected not only locally but also in its vicinity. The presented method is compared with respect to active ultrasonic transmission tests. https://www.ndt.net/search/docs.php3?id=31070 |
| spellingShingle | Helge Pfeiffer Tian Xun Lin Jeroen Soete Johan Vanhulst Dimitrios Chronopoulos Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting e-Journal of Nondestructive Testing |
| title | Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting |
| title_full | Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting |
| title_fullStr | Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting |
| title_full_unstemmed | Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting |
| title_short | Detecting Water in Honeycomb Composites by Acoustic Emission during Freezing or Melting |
| title_sort | detecting water in honeycomb composites by acoustic emission during freezing or melting |
| url | https://www.ndt.net/search/docs.php3?id=31070 |
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