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Static Buckling of FML Columns in Elastic-Plastic Range

Kołakowski Z., Kowal-Michalska K., Mania R.

Mechanics and Mechanical Engineering

2016

Vol. 20, nr 2

151--166

The paper deals with the elasto{plastic buckling of thin-walled Fiber Metal Laminates short columns/pro les subjected to axial uniform compression. Structures of open and hollow (closed) cross-sections are considered build of at plate walls. Multilayered FML walls are considered as built of alternating layers of aluminum and fiber-glass composite. Three elastic{plastic theories are employed for constitutive relations description of aluminum layers i.e. fully elastic material behavior, the J2-deformation theory of plasticity and the J2-flow theory later both with Ramberg-Osgood formula application, whereas composite layers are assumed elastic within whole loading range. Some exemplary results determined with the application of own analytical-numerical method based on the Koiter's theory, in the Byskov and Hutchinson formulation are enclosed in the form of tables and plots.