Bezerra, Claudionor GomesTinoco, Emanuel Caio Moreira2025-07-032025-07-032024-08-15TINOCO, Emanuel Caio Moreira. Transmissão de ondas elásticas em estruturas fonônicas quasiperiódicas unidimensionais. Orientador: Dr. Claudionor Gomes Bezerra. 2024. 77f. Dissertação (Mestrado em Física) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2024.https://repositorio.ufrn.br/handle/123456789/64114In this study, we employed a transfer matrix approach to investigate the transmission properties of quasiperiodic one-dimensional phononic crystals arranged according to Fibonacci, Thue-Morse, Double Period, and Kolakoski sequences. We considered three structural modifications (conventional, symmetric, and antisymmetric) in lead-epoxy composite materials embedded between two semi-infinite aluminum layers. Our numerical experiments focus on the longitudinal and transverse wave propagation in an ultrasonic frequency regime for different incident angles. The number of perfect transmission peaks and the distribution of the band gap vary significantly for the modified arrangements. The results obtained have expanded our understanding of the properties of these crystals and reveal technological applications in acoustic devices.pt-BRAcesso Aberto"Band Gap"Matriz de transferênciaQuasicristais fonônicosOndas mecânicasmasterThesisCIENCIAS EXATAS E DA TERRA::FISICA