A Multi-Scale Computational Study on the Fracture Mechanics of Fiber-Reinforced Geopolymer Composites for Seismic Applications
DOI:
https://doi.org/10.64137/XXXXXXXX/IJMAR-V1I1P102Keywords:
Fiber-reinforced geopolymer composites, Fracture mechanics, Multi-scale modeling, Seismic performance, Cohesive zone modeling, Crack propagation, Energy dissipation, RVE analysis, Structural simulation, Sustainable construction materialsAbstract
GPCs (geopolymer composites with fibers) are now being recognized as smart replacements for traditional cement products, especially in seismic situations that need more fracture resistance and energy absorption. To investigate the fracture behavior of fiber-reinforced GPCs, this study examines them through micro-scale simulations, meso-scale analysis and large-scale simulations. There is an assessment of steel, glass, polypropylene and hybrid fibers to understand their effect on how the matrix interacts, how Cracks Bridge and the failure patterns during cyclic loading. Experimental results are used to test if the simulation accurately predicts tensile strength, fracture energy and crack development. The impacts of fiber alignment, content and interface bonding on both stress and damage are simulated at a micro-scale. Meso-scale modeling points out that fiber pullout and bridging improve crack resistance, whereas macro-scale analysis measures how well structural elements deal with load and seismic pressure. The work includes using parametric analysis to explore the effects that different types of fibers have on the structure and proves the connection between its microstructure and how the structure functions. Data shows that fiber-reinforced GPCs perform much better under fracture than traditional concrete, making them suitable for earthquake-proof structures. Based on the findings, engineers can improve and design better sustainable composite materials used in civil engineering
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