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arXiv · 2008.09934

Rigidity and fracture of fibrous double networks

Pancy Lwin·Andrew Sindermann·Leo Sutter·Thomas Wyse Jackson·Lawrence Bonassar·Itai Cohen·Moumita Das
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Abstract

Tunable mechanics and fracture resistance are hallmarks of biological tissues and highly desired in engineered materials. To elucidate the underlying mechanisms, we study a rigidly percolating double network (DN) made of a stiff and a flexible network. The DN shows remarkable tunability in mechanical response when the stiff network is just above its rigidity percolation threshold and minimal changes far from this threshold. Further, the DN can be modulated to either be extensible, breaking gradually, or stronger, breaking in a more brittle fashion by varying the flexible network's concentration.

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Pancy Lwin, Andrew Sindermann, Leo Sutter, Thomas Wyse Jackson, Lawrence Bonassar, Itai Cohen, Moumita Das. 2020-08-23. Rigidity and fracture of fibrous double networks. https://arxiv.org/abs/2008.09934

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