A mass constraint formulation for structural topology optimization with multiphase materials

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An improved soft-kill BESO algorithm for optimal distribution of single or multiple material phases (2015, background): “For other notable recent works in this area, the reader is referred to the works of Gao and Zhang (2011); Bruyneel (2011); Blasques and Stolpe (2012); Gao et al (2013); Tavakoli and Mohseni (2014); Tavakoli (2014); Park and Sutradhar (2015); Querin et al (2015).”
A multi-material level set-based topology and shape optimization method (2015, methodology): “For instance, an extension of the SIMP method for the multi-materials problem is the recursive multiphase materials interpolation [18].”
A new multi-material level set topology optimization method with the length scale control capability (2018, unknown): “Gao and Zhang [15] compared the SIMP and DMO interpolation schemes through studying the mass-constrained multi-material topology optimization problems.”
Multimaterial topology optimization by volume constrained Allen–Cahn system and regularized projected steepest descent method (2014, methodology): “DMO approach has been used in [2] to solve multimaterial topology optimization with the mass constraint.”
A Pareto-Optimal Approach to Multimaterial Topology Optimization (2015, background): “More recently, researchers have explored mass constraint formulations [51], [58].”