Analysis of energy release rate of laser-induced cohesive bonding of carbon fiber-reinforced polyetherketoneketone thermoplastic composites Authors Hyung Doh Roh, Insung C
- Title
- Analysis of energy release rate of laser-induced cohesive bonding of carbon fiber-reinforced polyetherketoneketone thermoplastic composites Authors Hyung Doh Roh, Insung C
- Author
- 노형도
- Keywords
- Polymer-matrix composites; Thermal properties
- Issue Date
- 2023-12
- Publisher
- ELSEVIER SCI LTD
- Citation
- POLYMER TESTING, v. 129, article no. 108271, page. 1-9
- Abstract
- In this study, laser joining of carbon fiber/polyetherketoneketone composites with several patterns was investigated to achieve weight reduction without any mechanical fasteners. The laser beam concentrated the energy, and heat conduction in the through-thickness direction of heterogeneous carbon fiber-reinforced thermoplastics caused molecular diffusion at the joining interface. According to the double-beam cantilever test results, the maximum energy release rate (ERR) was 2.01 J/mm2, which was 900 % higher than that of epoxy adhesive joining using laser power densities in the range of 1.05–1.34 W/mm2. A higher ERR was achieved because the optimized laser joining pattern secured repetitive cohesive joining at the interface. Thus, a complicated and stepwise crack opening was observed, which interfered with the propagation.
- URI
- https://www.sciencedirect.com/science/article/pii/S0142941823003513https://repository.hanyang.ac.kr/handle/20.500.11754/190904
- ISSN
- 0142-9418
- DOI
- https://doi.org/10.1016/j.polymertesting.2023.108271
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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