Dr. David Hu's research focuses on fundamental problems of hydrodynamics and elasticity that have bearing on problems in biology. He is interested in the dynamics of interfaces, specifically those associated with fluid-solid and solid-solid interactions. The techniques used in his work include theory, computation, and experiment. He is also interested in pursuing biomimetic technologies based on nature's designs.
Dr. Meaud investigates the mechanics and physics of complex biological systems and the mechanics and design of engineering materials using theoretical and computational tools.
One of his research interests is auditory mechanics. In this research, he develops computational multiphysics models of the mammalian ear based on the finite element method. The mammalian ear is a nonlinear transducer with excellent frequency selectivity, high sensitivity, and good transient capture. The goal of this basic scientific research is to better understand how the mammalian ear achieves these characteristics. This research could have important clinical applications as it could help in the development of better treatment and the improvement of diagnostic tools for hearing loss. It could also have engineering applications, such as the design of biometic sensors. This research is truly interdisciplinary as it includes aspects of computational mechanics, structural acoustics, nonlinear dynamics, biomechanics and biophysics.
Dr. Meaud is also interested in the mechanics, design and optimization of composite materials, particularly of their response to cyclic loads. Tradtional engineering and natural materials with high damping (such as rubber) tends to have low stiffness. However, the microarchitecture of composite materials that consist of a lossy polymer and a stiff constituent can be designed to simultaneously obtain high stiffness and high damping. Using computational tools such as finite element methods and topology optimization, the goal of Dr. Meaud's research is to design composite materials with these unconventional properties. One of his future goal is to extend the design of these materials to the finite strain regime and high frequency ranges, in order to obtained materials tailored for the targetted application. This research includes aspects of mechanics of materials, computational mechanics and structural dynamics.