The phenomenon of localisation is reasonably well understood in quantum physics and fluid mechanics [1], but less so in the area of structural mechanics. In this contribution we revisit the effect of secondary bifurcations on the post-buckling response of a 3D system of elastically restrained beams. Our objective is to construct a uniform asymptotic expansions for the localised buckling patterns experienced by this model by using a mixture of asymptotics (WKB techniques [2]) and numerics.
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