A 199-line Matlab code for Pareto-optimal tracing in topology optimization

Abstract

The paper 'A 99-line topology optimization code written in Matlab' by Sigmund (Struct Multidisc Optim 21(2):120-127, 2001) demonstrated that SIMP-based topology optimization can be easily implemented in less than hundred lines of Matlab code. The published method and code has been used even since by numerous researchers to advance the field of topology optimization. Inspired by the above paper, we demonstrate here that, by exploiting the notion of topological-sensitivity (an alternate to SIMP), one can generate Pareto-optimal topologies in about twice the number of lines of Matlab code. In other words, optimal topologies for various volume fractions can be generated in a highly efficient manner, by directly tracing the Pareto-optimal curve. © c Springer-Verlag 2010.