Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Vibrothermography"”.
-
An investigation of the excitation frequency dependent behavior of fiber reinforced epoxy composites during vibrothermographic inspection
… in fiber reinforced composites during vibrothermography, the use of active thermography with a mechanical excitation for the nondestructive evaluation of a structure or part. Two models, one where the size and geometry of the flaw control a local resonance and the other where the part …
-
Finite Element Modeling of Delamination Damage in Carbon Fiber Laminates Subject to Low-Velocity Impact and Comparison with Experimental Impact Tests Using Nondestructive Vibrothermography Evaluation
… <p>Experimental impact testing and subsequent vibrothermography analysis showed delamination damage in locations shown in previous research. This confirmed the validity of vibrothermography as a nondestructive evaluation technique for analyzing post-impact delamination.</p>
-
Delamination dynamics and vibrothermographic-thermoelastic evaluation of advanced composite materials
… was justified. Two NDE methods namely, Vibrothermography and SPATE were used to verify the numerical predictions. Experiments performed for both undamaged and damaged specimens, and good correlation between theory and testing was achieved.
-
Thermographic detection of damaged regions in fiber-reinforced composite materials
… materials of a particular NDI technique, vibrothermography, is studied. With this technique, specimens are excited with a high power, low frequency ultrasonic shaker while the specimen is monitored with an infrared camera. Once temperature patterns are developed, thermograms are …
-
Frequency dependent heat generation during vibrothermographic testing of composite materials
… also inspected constituting an application of vibrothermography on real damaged components. The degree of heating of the damage were measured through a frequency range, and the damage severity was inspected by ultrasonic C-scan and edge replication. From comparison of two plots of the degree of …