Novel beam-like mechanical metamaterials with different flexural rigidities in two directions

In this paper, novel beam-like mechanical metamaterials (BLMMs) with different flexural rigidities in two directions are proposed. The BLMMs are composed of the rigid parts and the flexible parts, showing totally different flexural rigidities in rigid and flexible directions. The BLMMs exhibit quite small flexural rigidities in the flexible direction and easy to be rolled up, large flexural rigidities in the rigid direction and hard to be...