Abstract: “The paper presents quasi-static 3D buckling analysis results of thin-walled cylindrical metal silos with and without bulk solids. The behaviour of the bulk solid was described with a hypoplastic constitutive model. Non-linear analyses with geometric and material non-linearity were performed with a perfect and an imperfect silo shell. Different initial geometric imperfections were considered. The influence of internallystored bulk solids on the buckling strength was compared with experimental results from the literature. The results clearly indicate a strengthening effect of the stored solid on the silo buckling strength.”

Keywords: silo buckling, bulk solid, hypoplasticity, FE analysis