Large-Scale Topology Optimization

mult_material2455

Aerospace vehicles utilize slender, high-aspect ratio structures with small material volume fractions to achieve high stiffness-to-mass and strength-to-mass ratios. Optimization of these structures using topology optimization is challenging due to the demanding mesh requirements and large size of the design problem which scales in proportion to the analysis problem. We have addressed these difficulties by using a scalable framework for analysis and design of large-scale topology and multimaterial optimization problems. This framework includes a multigrid method for solving large structural finite-element problems, and a parallel design optimization framework for solving large-scale optimization problems.