Abstract
A combination of nondestructive evaluation (NDE) and structural health monitoring technique has been used to detect and localize in situ damage in X-COR sandwich composites. The NDE techniques, flash thermography and ultrasonic C-Scan, were used, and the inspection results showed promising capabilities as well as their inherent limitations. Subsequently, a guided wave based active interrogation technique was used to enable real-time damage detection and localization capabilities. Macro fiber composite and piezoelectric wafers were used for actuation and sensing, and the interaction of guided waves with the primary damage modes, delaminations and foam core separations, were studied. The results showed that delaminations lead to the guided wave mode conversion phenomenon within the material discontinuity area. A multidimensional signal processing technique, which was developed with a real-time and reference-free perspective, was used to analyze the converted wave modes in the time-space domain for damage localization. The results indicate that the converted wave mode is an effective indicator of in situ damage, especially when the received signal contains wave modes transmitted from multiple source locations.
| Original language | English (US) |
|---|---|
| Journal | Annual Forum Proceedings - AHS International |
| Volume | 2018-May |
| State | Published - Jan 1 2018 |
| Event | 74th American Helicopter Society International Annual Forum and Technology Display 2018: The Future of Vertical Flight - Phoenix, United States Duration: May 14 2018 → May 17 2018 |
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ASJC Scopus subject areas
- Engineering(all)
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A nondestructive evaluation and structural health monitoring framework for X-COR sandwich composites. / Li, Guoyi; Neerukatti, Rajesh Kumar; Chattopadhyay, Aditi; Rajadas, Abhishek; Huff, Daniel W.
In: Annual Forum Proceedings - AHS International, Vol. 2018-May, 01.01.2018.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - A nondestructive evaluation and structural health monitoring framework for X-COR sandwich composites
AU - Li, Guoyi
AU - Neerukatti, Rajesh Kumar
AU - Chattopadhyay, Aditi
AU - Rajadas, Abhishek
AU - Huff, Daniel W.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - A combination of nondestructive evaluation (NDE) and structural health monitoring technique has been used to detect and localize in situ damage in X-COR sandwich composites. The NDE techniques, flash thermography and ultrasonic C-Scan, were used, and the inspection results showed promising capabilities as well as their inherent limitations. Subsequently, a guided wave based active interrogation technique was used to enable real-time damage detection and localization capabilities. Macro fiber composite and piezoelectric wafers were used for actuation and sensing, and the interaction of guided waves with the primary damage modes, delaminations and foam core separations, were studied. The results showed that delaminations lead to the guided wave mode conversion phenomenon within the material discontinuity area. A multidimensional signal processing technique, which was developed with a real-time and reference-free perspective, was used to analyze the converted wave modes in the time-space domain for damage localization. The results indicate that the converted wave mode is an effective indicator of in situ damage, especially when the received signal contains wave modes transmitted from multiple source locations.
AB - A combination of nondestructive evaluation (NDE) and structural health monitoring technique has been used to detect and localize in situ damage in X-COR sandwich composites. The NDE techniques, flash thermography and ultrasonic C-Scan, were used, and the inspection results showed promising capabilities as well as their inherent limitations. Subsequently, a guided wave based active interrogation technique was used to enable real-time damage detection and localization capabilities. Macro fiber composite and piezoelectric wafers were used for actuation and sensing, and the interaction of guided waves with the primary damage modes, delaminations and foam core separations, were studied. The results showed that delaminations lead to the guided wave mode conversion phenomenon within the material discontinuity area. A multidimensional signal processing technique, which was developed with a real-time and reference-free perspective, was used to analyze the converted wave modes in the time-space domain for damage localization. The results indicate that the converted wave mode is an effective indicator of in situ damage, especially when the received signal contains wave modes transmitted from multiple source locations.
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M3 - Conference article
VL - 2018-May
JO - Annual Forum Proceedings - AHS International
JF - Annual Forum Proceedings - AHS International
SN - 1552-2938
ER -