A cellular metastructure incorporating coupled negative thermal expansion and negative Poisson's ratio

• Published in: International journal of solids and structures Vol. 150; pp. 255 - 267
• Main Authors: Wei, Kai, Peng, Yong, Qu, Zhaoliang, Pei, Yongmao, Fang, Daining
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.10.2018; Elsevier BV
• Subjects: Angles (geometry); Biomedical materials; Cellular structure; Computer simulation; Design parameters; Lightweight; Mechanical properties; Metamaterial; Metastructure; Negative Poisson's ratio; Negative thermal expansion; Poisson's ratio; Temperature; Thermal expansion; Weight reduction; Negative thermal expansion; Negative Poisson's ratio; Metamaterial; Cellular structure; Metastructure

•A metastructure is devised to obtain tailorable thermal expansion and tunable Poisson's ratio.•Analytical expressions for thermal expansion and Poisson's ratio are established and numerically validated.•The metastructure can give paired negative thermal expansion and negative Poisson'...