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Structural and Acoustic Behavior of Chiral Truss-Core Beams
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper analyzes the structural and acoustic behavior of sandwich beams with a chiral truss-core. This particular core configuration is considered to exploit some of the unique properties of ...
Control of Wave Propagation in Periodic Composite Rods Using Shape Memory Inserts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Longitudinal wave propagation is controlled using shape memory inserts placed periodically along rods. The inserts act as sources of impedance mismatch with tunable characteristics. Such characteristics ...
Wave Propagation in Auxetic Tetrachiral Honeycombs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a numerical and experimental investigation on the flexural wave propagation properties of a novel class of negative Poisson’s ratio honeycombs with tetrachiral topology. ...
Spectral and Perturbation Analysis of First-Order Beams With Notch Damage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of damage on waves propagating in beam structures is investigated through a numerical model formulated by combining spectral finite elements and perturbation techniques. The resulting ...
Vibration Control of Beams Using Electro-Magnetic Compressional Damping Treatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new class of structural damping treatments is introduced. This class is the electro-magnetic damping treatment (EMDT) which relies in its operation on a viscoelastic damping layer sandwiched ...
A Perturbation Approach for Analyzing Dispersion and Group Velocities in Two-Dimensional Nonlinear Periodic Lattices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper investigates wave dispersion in two-dimensional, weakly nonlinear periodic lattices. A perturbation approach, originally developed for one-dimensional systems and extended herein, allows ...