Harnessing irreversible thermal strain for shape memory in polymer additive manufacturing
Harnessing irreversible thermal strain for shape memory in polymer additive manufacturing
复制标题
在聚合物增材制造中利用不可逆热应变实现形状记忆
DOI:
10.1002/app.48239
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发表时间:
2019
影响因子:
3
通讯作者:
Peterson, Amy M.
中科院分区:
文献类型:
--
作者:
D'Amico, Tone P.;Barrett, Connor;Presing, Joseph;Patnayakuni, Roshni;Pourali, Masoumeh;Peterson, Amy M.
Shape transformation upon annealing of fused filament fabrication additively manufacturing structures is investigated as a one‐way shape memory strategy using commodity thermoplastics. Irreversible thermal strain, which is a measurement of shape transformation upon annealing, is shown to depend on both raster angle and layer thickness, both of which are parameters than can be easily adjusted on most FFF printers. We present an algorithm based on our understanding of the underlying micromechanics of the system that allows for input of desired final dimensions and output the necessary print parameters. We also demonstrate that this approach is extensible to other materials and report more complex shape memory geometries. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2019,136, 48239.
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