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 addi tion to the deep-collapse response of plated structures under static/d ynamic compressive loads. In the analysis of complex plated structures , each plate element composing the structure is modeled as one plate u nit. Two principal models, one elastic model for analysis of the ultim ate strength and the other rigid-plastic model for analysis of the cru shing load, for the plate unit subjected to static/dynamic loads are d erived theoretically. The models are basically formulated as a quasi-s tatic loading condition, but dynamic effects are included by taking in to account the influence of strain rate sensitivity in the material mo del. The procedure is verified by a comparison of experimental and oth er theoretical results.