| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Micro- and Nano-Mechanical Behavior of Materials
|
| Presentation Title |
Characterization of Fatigue Damage Behavior in Unidirectional Carbon Fiber Reinforced Plastic Laminates |
| Author(s) |
Akihiro Kudou, Satoshi Kobayashi, Toshiko Osada |
| On-Site Speaker (Planned) |
Akihiro Kudou |
| Abstract Scope |
In this study, tensile fatigue tests with acoustic emission (AE) measurement were performed on unidirectional carbon fiber reinforced plastic (CFRP) laminates with and without a notch. The relationship between fatigue damage and associated AE behavior were characterized. The AE waves from splitting occurrence and progress were also identified by comparing the damage behavior with and without a notch. Splitting occurred along the fiber direction from the tip of a notch in a specimen with a notch and the AE behavior reflected the splitting behavior. We discussed the AE behavior based on the experimental results about splitting behavior and the relationship between the AE and the fatigue damage behaviors in unidirectional CFRP laminate was clarified. From this relationship, it is possible to predict the damage type, size and quantity by comprehensively evaluating the frequency characteristics and each parameter of AE waves. |