In this paper, the crack detection and depth ratio estimation method are presented in beamlikestructures using Elman Networks. For this purpose, by using the frequencies of modes asinput, crack depth ratio of each element was detected as output. Performance of the proposedmethod was evaluated by using three numerical scenarios of crack for fixed-simply supportedbeam consisting of a single crack...

Introduction: Cone beam computed tomography (CBCT) was introduced and became more common based on its low cost, fast image procedure rate and low radiation dose compared to CT. This imaging modality improved diagnostic and treatment-planning procedures by providing three-dimensional information with greatly reduced level of radiation dose compared to 2D dental imaging modalitie...

Phononic crystals (PCs) and metamaterials are artificially structured materials with the unprecedented property of existence complete stop-bands. However, generally narrow width stop-bands in such severely limits their applicability. Here, a particular kind gradient zigzag metamaterial beams exclusively flat bands within broad frequency range is proposed based upon our previously uniform counte...