Abstract
Abstract One-sided thermal non-destructive testing (TNDT) is of vital importance in aerospace composites to monitor structural degradation, as well as to detect subsurface defects. The objective of this study is to evaluate simultaneously the thermal diffusivity and to characterize the defects within carbon fiber reinforced polymer (CFRP) composites. In this paper, a novel one sided TNDT technique is presented which relies on creating an artificial inflection point by multiplying front-surface temperature evolution by nth power of time, where 0 < n < 0.5, followed by optimization of n. An analytical solution of the diffusivity calculation and defect characterization in the case of CFRP composite plate is discussed. The characterization of low velocity impact damage is also investigated with the help of theoretical and experimental results. Some key research points which need further exploration are also discussed.
| Original language | English |
|---|---|
| Article number | 4429 |
| Pages (from-to) | 224-233 |
| Number of pages | 10 |
| Journal | Polymer Testing |
| Volume | 44 |
| DOIs | |
| Publication status | Published - 29 Jul 2015 |
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Keywords
- Impact damage
- Modeling
- Thermal diffusivity
- Thermal nondestructive testing
- Tomography
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
Cite this
A novel approach for one-sided thermal nondestructive testing of composites by using infrared thermography. / Vavilov, V. P.; Pawar, Sachin Sampatrao.
In: Polymer Testing, Vol. 44, 4429, 29.07.2015, p. 224-233.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A novel approach for one-sided thermal nondestructive testing of composites by using infrared thermography
AU - Vavilov, V. P.
AU - Pawar, Sachin Sampatrao
PY - 2015/7/29
Y1 - 2015/7/29
N2 - Abstract One-sided thermal non-destructive testing (TNDT) is of vital importance in aerospace composites to monitor structural degradation, as well as to detect subsurface defects. The objective of this study is to evaluate simultaneously the thermal diffusivity and to characterize the defects within carbon fiber reinforced polymer (CFRP) composites. In this paper, a novel one sided TNDT technique is presented which relies on creating an artificial inflection point by multiplying front-surface temperature evolution by nth power of time, where 0 < n < 0.5, followed by optimization of n. An analytical solution of the diffusivity calculation and defect characterization in the case of CFRP composite plate is discussed. The characterization of low velocity impact damage is also investigated with the help of theoretical and experimental results. Some key research points which need further exploration are also discussed.
AB - Abstract One-sided thermal non-destructive testing (TNDT) is of vital importance in aerospace composites to monitor structural degradation, as well as to detect subsurface defects. The objective of this study is to evaluate simultaneously the thermal diffusivity and to characterize the defects within carbon fiber reinforced polymer (CFRP) composites. In this paper, a novel one sided TNDT technique is presented which relies on creating an artificial inflection point by multiplying front-surface temperature evolution by nth power of time, where 0 < n < 0.5, followed by optimization of n. An analytical solution of the diffusivity calculation and defect characterization in the case of CFRP composite plate is discussed. The characterization of low velocity impact damage is also investigated with the help of theoretical and experimental results. Some key research points which need further exploration are also discussed.
KW - Impact damage
KW - Modeling
KW - Thermal diffusivity
KW - Thermal nondestructive testing
KW - Tomography
UR - http://www.scopus.com/inward/record.url?scp=84936753499&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84936753499&partnerID=8YFLogxK
U2 - 10.1016/j.polymertesting.2015.04.013
DO - 10.1016/j.polymertesting.2015.04.013
M3 - Article
VL - 44
SP - 224
EP - 233
JO - Polymer Testing
JF - Polymer Testing
SN - 0142-9418
M1 - 4429
ER -