Abstract
| Language | English |
|---|---|
| Pages | 196-199 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 13 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jun 2003 |
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Keywords
- CFRP
- eddy currents
- HTS SQUIDs
- nondestructive evaluation
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Squid-based nondestructive evaluation of carbon fiber reinforced polymer. / Carr, C.; Graham, D.; MacFarlane, J.C.; Donaldson, G.B.
In: IEEE Transactions on Applied Superconductivity , Vol. 13, No. 2, 06.2003, p. 196-199.Research output: Contribution to journal › Article
TY - JOUR
T1 - Squid-based nondestructive evaluation of carbon fiber reinforced polymer
AU - Carr, C.
AU - Graham, D.
AU - MacFarlane, J.C.
AU - Donaldson, G.B.
PY - 2003/6
Y1 - 2003/6
N2 - Recent work with HTS SQUIDs in nondestructive evaluation has concentrated on the detection of flaws in aircraft-grade aluminum, with particular emphasis on surface-breaking tears beside rivets. More complex materials are now also being used in aircraft manufacture, with carbon fiber reinforced polymer (CFRP) being one of the most common. Existing technologies such as ultrasound are particularly well suited to the detection of impact-damaged sites and until now there have only been a few reports of eddy current examination of CFRP samples. Here we present results on samples with regions of heat damage, impact damage and with nonmagnetic inserts using eddy current detection techniques. We compare the signal to noise ratio and spatial resolution for a variety of sensors including HTS SQUIDs and gradiometers and conventional induction coils, and discuss variations in detection efficiency with field component measured.
AB - Recent work with HTS SQUIDs in nondestructive evaluation has concentrated on the detection of flaws in aircraft-grade aluminum, with particular emphasis on surface-breaking tears beside rivets. More complex materials are now also being used in aircraft manufacture, with carbon fiber reinforced polymer (CFRP) being one of the most common. Existing technologies such as ultrasound are particularly well suited to the detection of impact-damaged sites and until now there have only been a few reports of eddy current examination of CFRP samples. Here we present results on samples with regions of heat damage, impact damage and with nonmagnetic inserts using eddy current detection techniques. We compare the signal to noise ratio and spatial resolution for a variety of sensors including HTS SQUIDs and gradiometers and conventional induction coils, and discuss variations in detection efficiency with field component measured.
KW - CFRP
KW - eddy currents
KW - HTS SQUIDs
KW - nondestructive evaluation
UR - http://dx.doi.org/10.1109/TASC.2003.813682
U2 - 10.1109/TASC.2003.813682
DO - 10.1109/TASC.2003.813682
M3 - Article
VL - 13
SP - 196
EP - 199
JO - IEEE Transactions on Applied Superconductivity
T2 - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2
ER -