Composite Materials in Structural Engineering: Elaborate on the theoretical principles governing the behavior of composite materials in structural engineering applications. Discuss the synergistic effects of combining different materials, such as fibers and matrices, to create composites with tailored mechanical properties. Explore theories of composite mechanics, including laminate theory and micromechanical models, used to predict the overall performance of composite structures under various loading conditions. Evaluate the advantages of composites over conventional materials in terms of strength$-$to$-$weight ratio, corrosion resistance, and fatigue behavior, and their role in lightweight construction for aerospace, automotive, and civil infrastructure.