Abstract
In these days, many bridges and offshore structures near ship's waterways are constructed. Accordingly the number of collision accidents between vessel and these structures is increasing. To prevent direct collisions various protective devices are installed around bridge piers, thereby minimizing the damage to both bridge and ship. We employed thermoplastic polyester elastomer (TPEE) in the research on putting into practical use for a more rational protective device. As a part of our basic research, we will report our tests and finite element method that used flexible soft polyurethane foam, a homogeneous elastic material. We modeled this material, which has a fine cell structure, based on the constitutive law using a strain energy function. We also tried to apply this foam model to our new TPEE protective device.
