Ultimate and Crushing Strength of Plated Structures

An efficient theoretical approach is developed which calculates in the same mathematical process the pre-and post-collapse behavior in addition to the deep-collapse response of plated structures under static/ dynamic compressive loads. In the analysis of complex plated structures, each plate element composing the structure is modeled as one plate unit. Two principal models, one elastic model for analysis of the ultimate strength and the other rigid-plastic model for analysis of the crushing load, for the plate unit subjected to static/dynamic loads are derived theoretically. The models are basically formulated as a quasi-static loading condition, but dynamic effects are included by taking into account the influence of strain rate sensitivity in the material model. The procedure is verified by a comparison of experimental and other theoretical results.