Abstract
We have used infrared thermography to study water trapped in aviation honeycomb panels, namely: 1) possibility of quantitative evaluation of trapped water, 2) influence of honeycomb panel orientation on the efficiency of water detection, and 3) discrimination between honeycomb cells filled with water and adhesive. It is shown, both theoretically and experimentally, that it is difficult for TNDT to discriminate between the presence of water and epoxy trapped in honeycomb cells, by analyzing only the surface temperature patterns. It has been demonstrated that water trapped in honeycomb cells can be reliably detected by an increase in effusivity starting from the inflection time. This process is referred to as the “concept of apparent effusivity”.
| Original language | English |
|---|---|
| Pages (from-to) | 270-280 |
| Number of pages | 11 |
| Journal | Polymer Testing |
| Volume | 54 |
| DOIs | |
| Publication status | Published - 1 Sep 2016 |
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Keywords
- Active thermal nondestructive testing
- Effusivity evaluation
- Honeycomb structure
- Water ingress
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
Cite this
Detecting water ingress in aviation honeycomb panels : Qualitative and quantitative aspects. / Vavilov, Vladimir; Marinetti, Sergio; Pan, Yangyang; Chulkov, Arseny Olegovich.
In: Polymer Testing, Vol. 54, 01.09.2016, p. 270-280.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Detecting water ingress in aviation honeycomb panels
T2 - Qualitative and quantitative aspects
AU - Vavilov, Vladimir
AU - Marinetti, Sergio
AU - Pan, Yangyang
AU - Chulkov, Arseny Olegovich
PY - 2016/9/1
Y1 - 2016/9/1
N2 - We have used infrared thermography to study water trapped in aviation honeycomb panels, namely: 1) possibility of quantitative evaluation of trapped water, 2) influence of honeycomb panel orientation on the efficiency of water detection, and 3) discrimination between honeycomb cells filled with water and adhesive. It is shown, both theoretically and experimentally, that it is difficult for TNDT to discriminate between the presence of water and epoxy trapped in honeycomb cells, by analyzing only the surface temperature patterns. It has been demonstrated that water trapped in honeycomb cells can be reliably detected by an increase in effusivity starting from the inflection time. This process is referred to as the “concept of apparent effusivity”.
AB - We have used infrared thermography to study water trapped in aviation honeycomb panels, namely: 1) possibility of quantitative evaluation of trapped water, 2) influence of honeycomb panel orientation on the efficiency of water detection, and 3) discrimination between honeycomb cells filled with water and adhesive. It is shown, both theoretically and experimentally, that it is difficult for TNDT to discriminate between the presence of water and epoxy trapped in honeycomb cells, by analyzing only the surface temperature patterns. It has been demonstrated that water trapped in honeycomb cells can be reliably detected by an increase in effusivity starting from the inflection time. This process is referred to as the “concept of apparent effusivity”.
KW - Active thermal nondestructive testing
KW - Effusivity evaluation
KW - Honeycomb structure
KW - Water ingress
UR - http://www.scopus.com/inward/record.url?scp=84979752415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84979752415&partnerID=8YFLogxK
U2 - 10.1016/j.polymertesting.2016.07.023
DO - 10.1016/j.polymertesting.2016.07.023
M3 - Article
VL - 54
SP - 270
EP - 280
JO - Polymer Testing
JF - Polymer Testing
SN - 0142-9418
ER -