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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.

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Characterization of Dislocation Avalanches by In Situ Micropillar Compression Tests with Simultaneously Detected Acoustic Emission
Characterization of Electroless Copper Deposits on Electrospun PAN Fibers in Aligned and Random Configurations
Characterization of Fatigue Damage Behavior in Unidirectional Carbon Fiber Reinforced Plastic Laminates
Computer Vision Approach to Study Surface Deformation of Materials
Cyclo[18]carbon as an Ultra-flexible Material
Diffusion Induced Abnormal Softening Behaviors in Nanocrystals
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Gradatim Ferociter: Exploring the Grain Size Stability of Heterogeneous Copper in Thermal, Mechanical and Radiation Environments
In Situ Nanomechanical Testing of Piezoresistive Materials
In Situ Nanomechanics of Ni-based Superalloys and Bond Coating: Effect of Temperature
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Mechanical Behavior of Resilin-mimicking Materials
Mechanical Properties of Hybrid Core-shell Ceramic Nanoparticles
Microparticle Impacts at Supersonic Speeds, and the Role of Surface Layers
Persistent, Inelastic Cycling Behavior in Rare Earth Orthophosphate Ceramics
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Quantitative Evaluation of Large Nanoindentation Data Sets
Small-Scale Mechanical Behavior of Ion-irradiated Amorphous Metals versus Multi-Principal Alloys
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