Exploiting Functionally Graded Elastomeric Materials to Program Collapse and Mechanical Properties
Exploiting Functionally Graded Elastomeric Materials to Program Collapse and Mechanical Properties
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DOI：
10.1002/adem.201900807
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发表时间：
2019-12-01
影响因子：
3.6
通讯作者：
Harne, Ryan L.
中科院分区：
文献类型：
--
作者：
El-Helou, Charles;Harne, Ryan L.
具有周期性微结构的材料的发展提供了通过规定的塌陷机制来调节机械性能的手段。随着研究关注可调单元格设计，出现了关于利用构建材料的战略方法的问题，以实现对性能和材料功能的大规模可编程控制。本文证明了合理设计功能梯度弹性体材料以产生规定的机械性能的潜力。在对简化的单胞和层进行计算和实验研究之后，结果启发了利用线性弹性网络类比来设计组合和功能梯度材料的方法。这种方法简化了一种基于与基本材料成分的测量相关的简单计算来创建预编程属性的简化方法。研究结果为创新方法奠定了基础，这些方法可以在无数工程应用中利用具有可编程塌陷的弹性体材料。
The development of materials with periodic microstructures provides the means to tune mechanical properties via prescribed collapse mechanisms. As investigations give attention to tunable unit cell designs, questions arise regarding strategic ways to exploit built-up materials to empower large, programmable control over properties and material functionality. The potential to rationally design functionally graded elastomeric materials to yield prescribed mechanical properties is demonstrated herein. Following computational and experimental studies of simplified unit cells and layers, the results inspire ways to exploit linear elastic network analogies to design built-up and functionally graded materials. This approach exemplifies a streamlined means to create pre-programmed properties on the basis of simple calculations related to measurements from fundamental material constituents. The results build a foundation for innovative approaches to newly leverage elastomeric materials with programmable collapse for myriad engineering applications.