Mechanical Characterization and Impact Damage Assessment of Hybrid Three-Dimensional Five-Directional Composites.

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ID: 53906
2019
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Abstract
The effects of braided architecture and co-braided hybrid structure on low-velocity response of carbon-aramid hybrid three-dimensional five-directional (3D5d) braided composites were experimentally investigated in this study. Low-velocity impact was conducted on two types of hybridization and one pure carbon fiber braided reinforced composites under three velocities. Damage morphologies after low-velocity impact were detected by microscopy and ultrasonic nondestructive testing. Interior damages of composites were highly dependent on yarn type and alignment. Impact damage tolerance was introduced to evaluate the ductility of hybrid composites. Maximum impact load and toughness changed with impact velocity and constituent materials of the composites. The composite with aramid fiber as axial yarn and carbon fiber as braiding yarn showed the best impact resistance due to the synergistic effect of both materials. Wavelet transform was applied in frequency and time domain analyses to reflect the failure mode and mechanism of hybrid 3D5d braided composites. Aramid fibers were used either as axial yarns or braiding yarns, aiding in the effective decrease in the level of initial damage. In particular, when used as axial yarns, aramid fibers effectively mitigate the level of damage during damage evolution.
Reference Key
wu2019mechanicalpolymers Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wu, Liwei;Wang, Wei;Jiang, Qian;Xiang, Chunjie;Lou, Ching-Wen;
Journal Polymers
Year 2019
DOI
E1395
URL
Keywords
carbon fiber aramid fiber hybrid composite low-velocity impact hiv tuberculosis malaria infectious diseases antimicrobial resistance outcome impacts

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