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Mechanical Properties of Schwarzites - A Fully Atomistic Reactive Molecular Dynamics Investigation

Published online by Cambridge University Press:  29 January 2018

Cristiano F. Woellner ,
Tiago Botari ,
Eric Perim  and
Douglas S. Galvão
Cristiano F. Woellner*
Affiliation:
Applied Physics Department, State University of Campinas, 13083-859 Campinas-SP, Brazil Center for Computational Engineering & Sciences, State University of Campinas, Campinas-SP, Brazil
Tiago Botari
Affiliation:
Applied Physics Department, State University of Campinas, 13083-859 Campinas-SP, Brazil
Eric Perim
Affiliation:
Applied Physics Department, State University of Campinas, 13083-859 Campinas-SP, Brazil
Douglas S. Galvão
Affiliation:
Applied Physics Department, State University of Campinas, 13083-859 Campinas-SP, Brazil Center for Computational Engineering & Sciences, State University of Campinas, Campinas-SP, Brazil
*
*(Email: crisfisico@gmail.com)
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Abstract

Schwarzites are crystalline, 3D porous structures with a stable negative curvature formed of sp2-hybridized carbon atoms. These structures present topologies with tunable porous size and shape and unusual mechanical properties. In this work, we have investigated the mechanical behavior under compressive strain and energy absorption of four different Schwarzites. We considered two Schwarzites families, the so-called Gyroid and Primitive and two structures from each family. We carried out reactive molecular dynamics simulations, using the ReaxFF force field as available in the LAMMPS code. Our results also show they exhibit remarkable resilience under mechanical compression. They can be reduced to half of their original size before structural failure (fracture) occurs.

Keywords

fractureelastic propertiesenergetic material

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Articles
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MRS Advances , Volume 3 , Issue 8-9: Theory, Characterization and Modeling , 2018 , pp. 451 - 456
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Copyright
Copyright © Materials Research Society 2018 

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References

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