Portal Frame

Portal frame fixed at the bottom and loaded with a distributed force applied at the center top.

Topology optimization with local stress constraints: A stress aggregation-free approach.

Senhora, F. V., Giraldo-Londoño, O., Menezes, I. F. M., and Paulino, G. H. (2019). Topology optimization with local stress constraints: A stress aggregation-free approach. Structural and Multidisciplinary Optimization, 62, 1639-1668.

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Problem description

The 3D model above corresponds to the stress-constrained topology optimization results for the 3D portal frame shown below. The optimization results were obtained using 1.2M regular hexahedral elements on a MATLAB implementation of an augmented Lagrangian-based formulation for topology optimization with local stress constraints.