보의 진동특성에 미치는 부식의 영향

Corrosion of structures can make their actual lifetime shorter than that originally designed. Therefore. the investigation of relation between the vibration characteristics of structures with the corrosion. The purpose of this' study is to investigate a change of natural frequency of beam structure according to the effect of corrosion. The corrosion device was designed for the corrosion experiment. The modal tests were carried out to examine the change of vibration characteristics of corrosion beam. It had the corrosion period of 4 weeks.