Jump to main content
Jump to site search

Issue 13, 2018
Previous Article Next Article

Viscoelastic multistable architected materials with temperature-dependent snapping sequence

Author affiliations

Abstract

When an architected material with snap-through instabilities is loaded, the unit cells of the architected material snap sequentially to a series of deformed configurations. In this paper, we propose the novel concept of multimaterial viscoelastic architected materials whose snapping sequence can be tuned using temperature as a control parameter. Because different polymers have different temperature-dependent properties, it is possible that one polymer that is stiffer than another polymer at one temperature becomes softer at a higher temperature. A 3D printing inverse molding process is used to fabricate soft multimaterial architected materials that consist of two different polymers. Using finite element simulations and experiments, we demonstrate that the snapping sequence of these multimaterial architected materials depends on temperature. The influence of the geometrical parameters of the design on the critical temperature at which the snapping sequence switches from one sequence to another sequence is systematically analyzed using simulations and experiments. Being able to tune the snapping sequence using temperature makes it possible to obtain a large number of distinct stable configurations in response to compressive loads. To illustrate a potential application, we demonstrate that these materials can be used as soft reconfigurable metamaterials with tunable stiffness.

Graphical abstract: Viscoelastic multistable architected materials with temperature-dependent snapping sequence

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Jan 2018, accepted on 01 Mar 2018 and first published on 01 Mar 2018


Article type: Paper
DOI: 10.1039/C8SM00217G
Citation: Soft Matter, 2018,14, 2492-2499
  •   Request permissions

    Viscoelastic multistable architected materials with temperature-dependent snapping sequence

    K. Che, C. Yuan, H. J. Qi and J. Meaud, Soft Matter, 2018, 14, 2492
    DOI: 10.1039/C8SM00217G

Search articles by author

Spotlight

Advertisements