Abstract:
:We present a new method for the design of devices to manipulate the displacement field in Elastic materials. It consists of solving a nonlinear optimization problem where the objective function defines the error in matching a desired displacement field, and the design variables determine the required material distribution within the device. In order to facilitate fabrication, the material at a given point of the device is chosen from a set of predefined materials, giving raise to a discrete optimization problem that is converted into a continuous one using the Discrete Material Optimization technique. The candidate materials maybe simple, isotropic materials, but the device made of them behaves as a whole as a metamaterial, enabling the manipulation of the displacement field in ways that are inconceivable in nature. As an example of application, a device for elastostatic cloaking or unfeelability is designed.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Fachinotti VD,Peralta I,Albanesi AEdoi
10.1038/s41598-018-28069-7subject
Has Abstractpub_date
2018-06-29 00:00:00pages
9857issue
1issn
2045-2322pii
10.1038/s41598-018-28069-7journal_volume
8pub_type
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