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Ultrasonic assessment of impact damage in aluminum/acrylic sandwich plates.
| Content Provider | CiteSeerX |
|---|---|
| Author | Liaw, B. M. Pierides, A. M. Liu, Y. X. |
| Abstract | Ultrasonic studies were conducted to assess damages generated by instrumented drop-weight impacting onto 6061-T6 aluminum/cast acrylic sandwich plates adhered by epoxy. Depending on several parameters, such as impact velocity, mass, temperature, sandwich construction, etc., various types of impact damage were observed, including plastic indentation, radiating cracks emanating from the impact site, partial and full debonding, and combinations of these damages. One major goal of this study is to use immersion ultrasound techniques in both pulse-echo and through-transmission modes to detect these failure mechanisms, which were clearly visible since cast acrylic is transparent. The developed NDT techniques can then be used to study damage behaviors in opaque composites, such as the fiber-metal laminates. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Impact Damage Ultrasonic Assessment Aluminum Acrylic Sandwich Plate Several Parameter Failure Mechanism Through-transmission Mode Sandwich Construction Cast Acrylic Various Type Impact Velocity 6061-t6 Aluminum Developed Ndt Technique Plastic Indentation Fiber-metal Laminate Opaque Composite Ultrasonic Study Major Goal Full Debonding Damage Behavior Impact Site Acrylic Sandwich Plate |
| Content Type | Text |