Abstract
The coral reef is the important producer in the eco system. It is known that formation of skeleton in branching coral is affected by environmental factors. However, bending strength property of the skeleton is not really investigated in the field of biological engineering. In this study, branching coral (Acropora nobilis) was conducted 4-point bending test based on JIS R 1601 standard. And internal structure of skeleton in branching coral was investigated by using the X-ray CT technique. The results show that the bending characteristics depend on the inhabiting environments of polyps and density of the branching coral.
