Abstract
In this work, a novel bi-material missing rib-type tetra-chiral tubular metamaterial (BMTTM) is designed by utilizing the base materials with different coefficients of thermal expansion (CTEs), and considering various material combinations. Counterintuitively, twist effect can be observed with temperature variation or uniaxial load for the BMTTM. The theoretical formations of the twist angle, Poisson's ratio (PR) and CTE are established and verified subsequently by numerical simulations. Theoretical and numerical results indicate that tailoring twist angle of the BMTTM can be achieved by manipulating the base material combination and the microstructural geometry. The BMTTM proffers a novel avenue to design temperature sensors, actuators, and satellite support tubes, serving in fluctuating temperature environments.
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