Structure-property relationships from universal signatures of plasticity in disordered solids

被引：247

作者：

Cubuk, E. D. ^{[1
]}

Ivancic, R. J. S. ^{[2
]}

Schoenholz, S. S. ^{[1
,2
]}

Strickland, D. J. ^{[3
]}

Basu, A. ^{[2
]}

Davidson, Z. S. ^{[2
]}

Fontaine, J. ^{[4
]}

Hor, J. L. ^{[5
]}

Huang, Y. -R. ^{[5
]}

Jiang, Y. ^{[6
]}

Keim, N. C. ^{[6
,7
]}

Koshigan, K. D. ^{[4
]}

Lefever, J. A. ^{[3
]}

Liu, T. ^{[8
]}

Ma, X. -G. ^{[2
,9
]}

Magagnosc, D. J. ^{[3
]}

Morrow, E. ^{[10
]}

Ortiz, C. P. ^{[2
]}

Rieser, J. M. ^{[2
]}

Shavit, A. ^{[5
]}

Still, T. ^{[2
]}

Xu, Y. ^{[2
]}

Zhang, Y.

Nordstrom, K. N. ^{[11
]}

Arratia, P. E. ^{[6
]}

Carpick, R. W. ^{[6
]}

Durian, D. J.

Fakhraai, Z. ^{[8
]}

Jerolmack, D. J. ^{[2
,12
]}

Lee, Daeyeon ^{[5
]}

Li, Ju ^{[13
,14
]}

Riggleman, R. ^{[5
]}

Turner, K. T. ^{[6
]}

Yodh, A. G. ^{[2
]}

Gianola, D. S. ^{[15
]}

Liu, Andrea J. ^{[2
]}

机构：

[1] Google Brain, Mountain View, CA 94043 USA

[2] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[3] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

[4] Univ Lyon, Lab Tribol & Dynam Syst, Ecole Cent Lyon, CNRS,UMR 5513, F-69134 Ecully, France

[5] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA

[6] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA

[7] Calif Polytech State Univ San Luis Obispo, Phys Dept, San Luis Obispo, CA 93407 USA

[8] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA

[9] CNRS Solvay UPenn UMI 3254, Complex Assemblies Soft Matter, Bristol, PA 19007 USA

[10] Houghton Coll, Dept Phys, Houghton, NY 14744 USA

[11] Mt Holyoke Coll, Dept Phys, S Hadley, MA 01075 USA

[12] Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA

[13] MIT, Dept Nucl Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[14] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[15] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

SCIENCE | 2017年 / 358卷 / 6366期

基金：

美国国家科学基金会;

关键词：

MECHANICAL-BEHAVIOR; METALLIC GLASSES; RELAXATION; DYNAMICS; STRENGTH; LIQUIDS; FLOW; DEFORMATION; POLYMERS;

D O I：

10.1126/science.aai8830

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

When deformed beyond their elastic limits, crystalline solids flow plastically via particle rearrangements localized around structural defects. Disordered solids also flow, but without obvious structural defects. We link structure to plasticity in disordered solids via a microscopic structural quantity, "softness," designed by machine learning to be maximally predictive of rearrangements. Experimental results and computations enabled us to measure the spatial correlations and strain response of softness, as well as two measures of plasticity: the size of rearrangements and the yield strain. All four quantities maintained remarkable commonality in their values for disordered packings of objects ranging from atoms to grains, spanning seven orders of magnitude in diameter and 13 orders of magnitude in elastic modulus. These commonalities link the spatial correlations and strain response of softness to rearrangement size and yield strain, respectively.

引用

页码：1033 / 1037

页数：5

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