Journal
JOURNAL OF MARINE SCIENCE AND APPLICATION
Volume 19, Issue 4, Pages 658-673Publisher
HARBIN ENGINEERING UNIV
DOI: 10.1007/s11804-020-00180-0
Keywords
Ultimate compressive strength; Steel-stiffened plate structures; Nonuniform plate thickness; ANSYS finite element method; ALPS; SPINE incremental Galerkin method; ALPS; ULSAP analytical method
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The aim of this paper is to develop computational models for the ultimate compressive strength analysis of stiffened plate panels with nonuniform thickness. Modeling welding-induced initial deformations and residual stresses was presented with the measured data. Three methods, i.e., ANSYS finite element method, ALPS/SPINE incremental Galerkin method, and ALPS/ULSAP analytical method, were employed together with existing test database obtained from a full-scale collapse testing of steel-stiffened plate structures. Sensitivity study was conducted with varying the difference in plate thickness to define a representative (equivalent) thickness for plate panels with nonuniform thickness. Guidelines are provided for structural modeling to compute the ultimate compressive strength of plate panels with variable thickness.
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