Abstract
Recent spatial structures such as shells and space frames become so large in spatial span that upon an external force local damage may occur first before the vibration state of the whole structures. It is thus important to investigate and estimate dynamic behaviors of spatial structures from a viewpoint of wave propagation. The impact hammer experiments for three lattice-type plates and one continuum plate are performed and the wave propagation properties such as propagating velocities, damping, etc. are discussed in the present paper. Preliminary experiments which were performed in advance for evaluating effects of boundary conditions are also presented.
