New algorithm can help improve cellular materials design

Date:
August 13, 2021
Source:
Swansea University
Summary:
New research has revealed that a simple but robust algorithm can
help engineers to improve the design of cellular materials that
are used in a variety of diverse applications ranging from defense,
bio-medical to smart structures and the aerospace sector.



FULL STORY ==========================================================================
New research published in Scientific Reports has revealed that a simple
but robust algorithm can help engineers to improve the design of cellular materials that are used in a variety of diverse applications ranging
from defence, bio- medical to smart structures and the aerospace sector.


==========================================================================
The way in which cellular materials will perform can be uncertain and
so calculations to help engineers predict how they will react for a
particular design, for a given set of loads, conditions and constraints,
can help maximise their design and subsequent performance.

The research collaborators at the Faculty of Science and Engineering,
Swansea University, Indian Institute of Technology Delhi and Brown
University, USA, found that running specialised calculations can help
engineers to find the optimum micro-structure for cellular materials
that are used for a wide range of purposes, from advanced aerospace applications to stents used for blocked arteries.

Research author Dr Tanmoy Chatterjee said: "This paper is the result of
one year of sustained collaborative research. The results illustrate
that uncertainties in the micro-scale can drastically impact the
mechanical performance of metamaterials. Our formulation achieved novel microstructure designs by employing computational algorithms which
follow the evolutionary principles of nature." Co-author Professor
Sondipon Adhikari explains: "This approach allowed us to achieve extreme mechanical properties involving negative Poisson's ratio (auxetic
metamaterial) and elastic modulus. The ability to manipulate extreme
mechanical properties through novel optimal micro-architecture designs
will open up new possibilities for manufacturing and applications." ========================================================================== Story Source: Materials provided by Swansea_University. Note: Content
may be edited for style and length.


========================================================================== Journal Reference:
1. Tanmoy Chatterjee, Souvik Chakraborty, Somdatta Goswami, Sondipon
Adhikari, Michael I. Friswell. Robust topological designs for
extreme metamaterial micro-structures. Scientific Reports, 2021;
11 (1) DOI: 10.1038/s41598-021-94520-x ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2021/08/210813100329.htm

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