Optimum design of truss topology under buckling constraints

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Optimal design of trusses with geometric imperfections: Accounting for global instability (2011, methodology): “In terms of global buckling, Guo et al. (2005) attempt to cir cumvent collinear chains by using overlapping members in the ground structure while Rozvany (1996) explored the use of system stability constraints and geometric imperfections to facilitate crea tion of the kind of bracing needed to…”
Topology optimization of continuum structures under buckling constraints (2015, background): “For trusses, frames, and other built-up structures consisting of bars and beams, much work has been done to consider the stability requirements in structural optimization, such as size optimization of trusses and frames [1], shape optimization of columns, truss or built-up structures [2-4] and topol”