Mixed-mode I/III fracture toughness of polymer matrix composites toughened with waste particles
Source abstract
Abstract
Abstract Fracture toughness of particle-filled polymer composite beams with different particle content for varying of crack inclination angles was investigated in mode I and mode III loading conditions. The beams were tested using three-point bending test with crack inclination angles of 30°, 45°, 75°, and 90°. Sewage sludge ash (SSA), fly ash (FA), and silicon carbide (SiC) microparticles were used as toughening fillers with 5, 10, 15, and 20 wt% contents of the total weight of the polymer composites. The scanning electron microscope (SEM) micrographs showed that a good indication was observed for dispersion of FA, SSA, and SiC particles within the polymer matrix. The critical crack tip stress intensity factors K Ic (crack angle 90°) and K IIIc , and the critical strain energy release rates G Ic and G IIIc were calculated and their results were compared. The mode I and mode III fracture toughness of the particulate polyester composite were improved by addition of particulate fillers. The maximum values of fracture toughness mode I ( K Ic and G Ic ) and mode III ( K IIIc and G IIIc ) were recorded at particle content of 5 wt% polymer composites.
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Research context
OpenAlex topics: Polymer Nanocomposites and Properties · Mechanical Behavior of Composites · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Mechanical Engineering Department, Faculty of Engineering , Gaziantep University , Gaziantep 27310 , Turkey
Materials Engineering Department , University of Technology , Baghdad 10066 , Iraq
References (30)
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