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Title: Role of local response in manipulating the elastic properties of disordered solids by bond removal

Journal Article · · Soft Matter
DOI:https://doi.org/10.1039/c7sm01727h· OSTI ID:1596339

Here, we investigate the range over which the elasticity of disordered spring networks can be manipulated by the removal of selected bonds. By taking into account the local response of a bond, we demonstrate that the effectiveness of pruning can be improved so that auxetic (i.e., negative Poisson's ratio) materials can be designed without the formation of cracks even while maintaining the global isotropy of the network. The bulk modulus and shear modulus scale with the number of bonds removed and we estimate the exponents characterizing these power laws. Furthermore, we find that there are spatial correlation lengths in the change of bulk modulus and shear modulus upon removing different bonds that diverge as the network approaches the isostatic limit where the excess coordination number ΔZ → 0.

Research Organization:
Univ. of Chicago, IL (United States); Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Simons Foundation; National Science Foundation (NSF)
Grant/Contract Number:
FG02-03ER46088; FG02-05ER46199; DMR-1420709
OSTI ID:
1596339
Journal Information:
Soft Matter, Vol. 14, Issue 2; ISSN 1744-683X
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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Cited By (12)

A broader view on jamming: from spring networks to circle packings journal January 2019
Ideal isotropic auxetic networks from random networks journal January 2019
Limits of multifunctionality in tunable networks journal January 2019
Three-Dimensionally Printed Mechanical Metamaterials With Thermally Tunable Auxetic Behavior journal April 2019
Memory formation in matter journal July 2019
Directed aging, memory, and nature’s greed journal December 2019
Designed Elastic Networks: Models of Complex Protein Machinery journal October 2018
Memory formation in matter text January 2018
Ideal isotropic auxetic networks from random networks preprint January 2019
Auxetic metamaterials from disordered networks text January 2017
Directed aging, memory and Nature's greed text January 2019
Training nonlinear elastic functions: nonmonotonic, sequence dependent and bifurcating preprint January 2020