期刊
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
卷 25, 期 8, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0960-1317/25/8/085004
关键词
self-folding; shape memory; laminate mechanisms; self-assembly; origami-inspired
类别
资金
- National Science Foundation [CCF-1138967, EFRI-1240383]
- DoD, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship [32 CFR 168a]
Self-folding is an effective method for creating 3D shapes from flat sheets. In particular, shape memory composites-laminates containing shape memory polymers-have been used to self-fold complex structures and machines. To date, however, these composites have been limited to feature sizes larger than one centimeter. We present a new shape memory composite capable of folding millimeter-scale features. This technique can be activated by a global heat source for simultaneous folding, or by resistive heaters for sequential folding. It is capable of feature sizes ranging from 0.5 to 40 mm, and is compatible with multiple laminate compositions. We demonstrate the ability to produce complex structures and mechanisms by building two self-folding pieces: a model ship and a model bumblebee.
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