Dynamic Compression and Fracture in Carbon-Fiber-Reinforced Polymer
Author Information
Author(s): Kumar Yogesh, Rezasefat Mohammad, Zaiemyekeh Zahra, Li Haoyang, Dolez Patricia, Hogan James
Primary Institution: Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada
Hypothesis
This study investigates the strain-rate-dependent behavior of a quasi-isotropic carbon-fiber-reinforced polymer composite under in-plane compressive loading.
Conclusion
The study found that the compressive strength and failure strain of the composite increase with higher strain rates.
Supporting Evidence
- The experiments showed a clear increase in compressive strength and failure strain with rising strain rates.
- Advanced imaging techniques were used to observe deformation mechanisms and failure modes.
- Post-mortem analyses revealed complex failure mechanisms including fiber kinking and matrix cracking.
Takeaway
This study looked at how a special type of plastic with carbon fibers behaves when squeezed quickly, finding that it gets stronger the faster you squeeze it.
Methodology
The study used a servo-hydraulic machine and a split-Hopkinson Pressure Bar to test the composite at various strain rates, analyzing the mechanical response and damage morphology.
Limitations
The study primarily focused on a specific composite layup and did not explore other configurations or environmental factors.
Digital Object Identifier (DOI)
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