Active renewable matter, a distinctive feature of adaptive living materials, can exhibit highly unusual mechanical responses by actively navigating the space of material parameters. In particular, it can self-drive towards elastic spinodals where the presence of inhomogeneous floppy modes, makes the matter elastically degenerate. The main effect of the implied marginality is stress localization leading to the emergence of force chains which can be actively assembled and disassembled. In this Letter we formalize the concept of spinodal states for general elastic solids and show how such extreme mechanical regimes can be actively navigated.
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Roychowdhury et al. (2024) studied this question.
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