DescriptionWe present a projection method to obtain high-resolution manufacturable structures from coarse-scale, homogenization-based topology optimization results. The focus of this work is on compliance minimization of linear-elasticity problems, for which the optimal solution is in the space of layered materials.
Pantz and Trabelsi introduced a method to project the microstructures from homogenization-based topology optimization. The microstructures are oriented along the directions of lamination such that a well-connected design is achieved. This approach paves the way for coarse-scale topology optimization where the projection can be performed on a high-resolution mesh, without a need for cumbersome and expensive multi-scale formulations. In a recent work we have simplified the projection procedure, and introduced procedures for controlling the shape of the projected design. This allowed for high-resolution (~1 million elements in 2D), near-optimal and manufacturable designs, obtained within a few minutes on a standard PC.
In the current work we will demonstrate extensions of the method into 3D, and discuss the potential of the method over standard topology optimization.
 J.P. Groen, O. Sigmund. Homogenization-based topology optimization for high-resolution manufacturable micro-structures. IJNME 2017;:1–18
 Pantz O, Trabelsi K.A post-treatment of the homogenization method for shape optimization. SIAM Journal on Control and Optimization 2008;47(3):1380–1398
|Period||23 Jul 2018 → 27 Jul 2018|
|Event title||IFIP TC7 CONFERENCE 2018: On System Modelling and Optimization|
|Location||Essen, Germany, North Rhine-Westphalia|
|Degree of Recognition||International|
- topology optimization
- coated structures