Isogeometric shape optimization of missing rib auxetics with prescribed negative Poisson’s ratio over large strains using genetic algorithm

• Published in: International journal of mechanical sciences Vol. 193; p. 106169
• Main Authors: Pokkalla, Deepak Kumar, Poh, Leong Hien, Quek, Ser Tong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2021
• Subjects: 3D Printing; Auxetic; Genetic algorithm; Isogeometric analysis; Negative Poisson’s ratio; Optical deformation measurement; Shape optimization; Isogeometric analysis; Optical deformation measurement; 3D Printing; Genetic algorithm; Shape optimization; Negative Poisson’s ratio; Auxetic

•Isogeometric shape optimization using genetic algorithm for missing rib structures with targeted deformation.•Constant negative Poisson’s ratio achieved for up till 50% effective tensile strain in plane stress with experimental validation.•Prescribed negative Poisson’s ratio achieved for large comp...