Strength analysis on hybrid welding interface of polymer and short carbon fiber reinforced composite
Source abstract
Abstract
Thermal welding is commonly used in polymer composite pipeline, and the strength of the polymer welding joint remains a weak link. Short carbon fiber (SCF) is used to reinforce polymer welding joint, where a hybrid welding interface between SCF-reinforced polymer composite and polymer is introduced. The hybrid welding interface involves joining of dissimilar materials, and there is a lack of understanding about the strength of the composite–polymer welding interface. In this study, shear and peel tests were conducted to evaluate the strength of the hybrid welding interface. Strain distribution around welding interface during testing was measured by digital image correlation, and the failure surfaces were analyzed by microscope observation. The results showed that both shear and peel strength of the hybrid welding interface were improved due to the bridging effect of SCF on the hybrid welding interface. However, it was also found that the SCF near the welding interface tended to orientate parallel to the welding interface after welding, and the welding-induced orientation limited the strengthening effect of SCF. The hybrid welding interface had larger shear rigidity, which led to a more even strain distribution, and could bear larger shear load comparing to pure polymer welding interface.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Smart Materials for Construction · Fiber-reinforced polymer composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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