Tunable Wood by Reversible Interlocking and Bioinspired Mechanical Gradients.

ABSTRACT: Elegant design principles in biological materials such as stiffness gradients or sophisticated interfaces provide ingenious solutions for an efficient improvement of their mechanical properties. When materials such as wood are directly used in high-performance applications, it is not possible to entirely profit from these optimizations because stiffness alterations and fiber alignment of the natural material are not designed for the desired application. In this work, wood is turned into a versatile engineering material by incorporating mechanical gradients and by locally adapting the fiber alignment, using a shaping mechanism enabled by reversible interlocks between wood cells. Delignification of the renewable resource wood, a subsequent topographic stacking of the cellulosic scaffolds, an

SUBMITTER: Frey M 

PROVIDER: S-EPMC6524091 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature