Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves

• Main Author: Hedayatrasa, Saeid (Author, http://id.loc.gov/vocabulary/relators/aut)
• Corporate Author: SpringerLink (Online service)
• Format: Electronic eBook
• Language: English
• Published: Cham : Springer International Publishing : Imprint: Springer, 2018.
• Edition: 1st ed. 2018.
• Series: Springer Theses, Recognizing Outstanding Ph.D. Research,
• Subjects: Vibration.; Dynamical systems.; Dynamics.; Materials science.; Engineering design.; Vibration, Dynamical Systems, Control.; Characterization and Evaluation of Materials.; Engineering Design.

This thesis proposes novel designs of phononic crystal plates (PhPs) allowing ultra-wide controllability frequency ranges of guided waves at low frequencies, with promising structural and tunability characteristics. It reports on topology optimization of bi-material-layered (1D) PhPs allowing maximi...

Table of Contents:

• Background and Research Scope
• Literature Review and Research Objectives
• Optimisation Framework Formulation.- Optimisation of Bi-Material Layered 1D Phononic Crystal Plates (PhPs).-Optimisation of Porous 2D PhPs with Respect to In Stiffness.- Optimisation of Porous 2D PhPs: Topology Refinement Study and other Aspect Ratios.- Optimisation of Porous 2D PhPs for Deformation- Induced Tunability
• Experimental Validation of Optimised Porous 2D  PhPs.- Conclusions and Recommendations for Future Work.