Damage of stiffened plates due to lateral collision and their residual strength under axial compression
- Stiffened plate is very conservative tool for engineering constructions. This type of structure is a standard element to start the investigation of the whole structures. Due to their strong demands, many researchers have paid attention to the ultimate strength of stiffened plate in several decades. In marine service life, most of the structures are contributed with stiffened plates.
Stiffened plate structures have to face dynamic loading during their service life. Moreover, the accidental cases such as collision, grounding and falling objects cannot be avoided. In this scenario, the residual ultimate strength becomes crucial factor to withstand the various loading in service life.
Among various structural elements of marine structures, only stiffened plates will be tested and analyzed in this study. Collision accident will be considered as the most probable one. Although damaged stiffened plates have to experience various kinds of loading, however, axial compression will be considered in this study.
At the first stage, lateral collision test are conducted and the results are used to validate the numerical tool for collision analyses. Simultaneously, the axial compression tests were performed and ultimate strength simulation is carried out using displacement control method according to the experimental environment.
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