Abstract
Adhesively bonded joints are used to connect structural members in aircraft. When subject to loads and environmental conditions these joints undergo deterioration. Being load bearing members, it becomes critical to develop reliable and non-destructive methods for inspecting these adhesive joints. Ultrasonic guided waves, with their mode and frequency tuning possibilities, form an attractive tool for such inspections. Guided wave behavior as observed through dispersion phenomena is dependent on the waveguide dimensions. Since actual structural joints in aircraft involve adherends of different thicknesses and materials, and joints of varied overlap lengths, a robust inspection methodology needs to be tunable for all conditions. A parametric study showing the effect that some key joint parameters, that is the thickness of the adhesive, overlap length, and material parameters, have on the ultrasonic guided wave behavior is presented in this paper. In addition, the influence of defects like cohesive weakness, delamination and kissing bonds and their location on guided wave propagation is investigated. The transmission of ultrasonic guided wave energy is used as a guideline to select optimal conditions for joint inspection.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1127-1133 |
| Number of pages | 7 |
| Journal | AIP Conference Proceedings |
| Volume | 1096 |
| DOIs | |
| State | Published - May 5 2009 |
| Event | Review of Progress in Quantitative Nondestructive Evaluation - Chicago, IL, United States Duration: Jul 20 2008 → Jul 25 2008 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
}
Ultrasonic guided wave inspection of adhesive joints : A parametric study for a step-lap joint. / Puthillath, Padma Kumar; Kannajosyula, Haraprasad; Lissenden, III, Clifford Jesse; Rose, Joseph Lawrence.
In: AIP Conference Proceedings, Vol. 1096, 05.05.2009, p. 1127-1133.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Ultrasonic guided wave inspection of adhesive joints
T2 - A parametric study for a step-lap joint
AU - Puthillath, Padma Kumar
AU - Kannajosyula, Haraprasad
AU - Lissenden, III, Clifford Jesse
AU - Rose, Joseph Lawrence
PY - 2009/5/5
Y1 - 2009/5/5
N2 - Adhesively bonded joints are used to connect structural members in aircraft. When subject to loads and environmental conditions these joints undergo deterioration. Being load bearing members, it becomes critical to develop reliable and non-destructive methods for inspecting these adhesive joints. Ultrasonic guided waves, with their mode and frequency tuning possibilities, form an attractive tool for such inspections. Guided wave behavior as observed through dispersion phenomena is dependent on the waveguide dimensions. Since actual structural joints in aircraft involve adherends of different thicknesses and materials, and joints of varied overlap lengths, a robust inspection methodology needs to be tunable for all conditions. A parametric study showing the effect that some key joint parameters, that is the thickness of the adhesive, overlap length, and material parameters, have on the ultrasonic guided wave behavior is presented in this paper. In addition, the influence of defects like cohesive weakness, delamination and kissing bonds and their location on guided wave propagation is investigated. The transmission of ultrasonic guided wave energy is used as a guideline to select optimal conditions for joint inspection.
AB - Adhesively bonded joints are used to connect structural members in aircraft. When subject to loads and environmental conditions these joints undergo deterioration. Being load bearing members, it becomes critical to develop reliable and non-destructive methods for inspecting these adhesive joints. Ultrasonic guided waves, with their mode and frequency tuning possibilities, form an attractive tool for such inspections. Guided wave behavior as observed through dispersion phenomena is dependent on the waveguide dimensions. Since actual structural joints in aircraft involve adherends of different thicknesses and materials, and joints of varied overlap lengths, a robust inspection methodology needs to be tunable for all conditions. A parametric study showing the effect that some key joint parameters, that is the thickness of the adhesive, overlap length, and material parameters, have on the ultrasonic guided wave behavior is presented in this paper. In addition, the influence of defects like cohesive weakness, delamination and kissing bonds and their location on guided wave propagation is investigated. The transmission of ultrasonic guided wave energy is used as a guideline to select optimal conditions for joint inspection.
UR - http://www.scopus.com/inward/record.url?scp=65349119381&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65349119381&partnerID=8YFLogxK
U2 - 10.1063/1.3114081
DO - 10.1063/1.3114081
M3 - Conference article
AN - SCOPUS:65349119381
VL - 1096
SP - 1127
EP - 1133
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
SN - 0094-243X
ER -