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Publications
Xu, M.C. and Guedes Soares, C. (2021), “Numerical study on the influence of experimental conditions on the collapse behaviour of stiffened panels”, Ocean Engineering, Vol. 220, 108410 (14 pages).
Numerical simulations of stiffened panels under in-plane compressive load are conducted to investigate the influence of experimental conditions on the structural strength and collapse characteristics. The initial geometrical imperfections of the stiffened panels have been measured before the test and are adopted in the numerical analysis. The material properties of the steel in the finite element analysis are determined by tension tests. Using the finite element method, various configurations, including the actual experimental boundary conditions and assumed ideal conditions are considered in the numerical simulations to identify the influence of laboratory conditions. The ultimate strength, structural modulus and collapse behaviour of the stiffened panels in the tests and numerical simulations are compared. The results of the analysis suggest that the translational and rotational degrees of freedom at the end edges of the specimen should be constrained to force the central span collapse first in the three full spans model.
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