Special Topics in Structural Dynamics & Experimental Techniques, Volume 5: Proceedings of the 41st IMAC, A Conference and Exposition on Structural Dynamics, 2023, the fifth volume of ten from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Active Control Additive Manufacturing Experimental Techniques Finite Element Techniques Multifunction Structures Rotating Machinery System Identification