Field responsive mechanical metamaterials

被引：190

作者：

Jackson, Julie A. ^{[1
,2
]}

Messner, Mark C. ^{[3
]}

Dudukovic, Nikola A. ^{[1
]}

Smith, William L. ^{[1
]}

Bekker, Logan ^{[1
]}

Moran, Bryan ^{[1
]}

Golobic, Alexandra M. ^{[1
]}

Pascall, Andrew J. ^{[1
]}

Duoss, Eric B. ^{[1
]}

Loh, Kenneth J. ^{[2
,4
]}

Spadaccini, Christopher M. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

[2] Univ Calif Davis, 1 Shields Ave, Davis, CA 95616 USA

[3] Argonne Natl Lab, 9700 Cass Ave, Lemont, IL 60439 USA

[4] Univ Calif San Diego, 9500 Gilman Dr,MC 0085, La Jolla, CA 92093 USA

来源：

SCIENCE ADVANCES | 2018年 / 4卷 / 12期

关键词：

FLUID; COMPOSITES; ULTRALIGHT; TIME;

D O I：

10.1126/sciadv.aau6419

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：

Typically, mechanical metamaterial properties are programmed and set when the architecture is designed and constructed, and do not change in response to shifting environmental conditions or application requirements. We present a new class of architected materials called field responsive mechanical metamaterials (FRMMs) that exhibit dynamic control and on-the-fly tunability enabled by careful design and selection of both material composition and architecture. To demonstrate the FRMM concept, we print complex structures composed of polymeric tubes infilled with magnetorheological fluid suspensions. Modulating remotely applied magnetic fields results in rapid, reversible, and sizable changes of the effective stiffness of our metamaterial motifs.

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