Smart structures with embedded flexible sensors fabricated by fused deposition modeling-based multimaterial 3D printing

IF 4.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Smart and Nano Materials Pub Date : 2022-07-03 DOI:10.1080/19475411.2022.2095454

Huilin Ren, Xiaodan Yang, Zhenhu Wang, Xuguang Xu, Rong Wang, Qi Ge, Yi Xiong

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引用次数: 8

Abstract

ABSTRACT Smart structures have the advantages of high system integrity and diverse sensing capabilities. However, the labor-intensive and time-consuming fabrication process hinders the large-scale adoption of smart structures. Despite recent attempts to develop sensor-embedded structures using 3D printing technologies, the reported smart structures generally suffer from the complex fabrication process, constrained part size, and limited sensing modality. Herein, we propose a workflow to design and fabricate novel smart structures via multimaterial fused deposition modeling (FDM)-based 3D printing. More specifically, conductive filaments with tailorable mechanical and electrical properties, e.g. piezoresistive effects, were developed. Additionally, the printing process was optimized for processing soft filaments with Young’s modulus around 2 MPa, resolving the issue of filament buckling. Furthermore, the potential applications of the proposed workflow were showcased using three design cases, i.e. biaxial strain sensor, smart tire, and cable-driven soft finger with multiple sensing capabilities. This workflow provides a cost-effective and rapid solution for developing novel smart structures with soft materials. Graphical Abstract

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基于融合沉积建模的多材料3D打印制造的嵌入式柔性传感器智能结构

智能结构具有系统完整性高、传感能力多样等优点。然而，劳动密集型和耗时的制造过程阻碍了智能结构的大规模采用。尽管最近尝试使用3D打印技术开发传感器嵌入式结构，但报道的智能结构通常受到复杂的制造过程、零件尺寸限制和有限的传感方式的影响。本文提出了一种基于多材料熔融沉积建模(FDM)的3D打印设计和制造新型智能结构的工作流程。更具体地说，开发了具有可定制的机械和电气性能(例如压阻效应)的导电丝。此外，优化了打印工艺，可加工杨氏模量在2 MPa左右的软长丝，解决了长丝屈曲问题。此外，通过三种设计案例，即双轴应变传感器、智能轮胎和具有多种传感功能的电缆驱动软手指，展示了该工作流程的潜在应用。该工作流程为开发新型软材料智能结构提供了一种经济高效的快速解决方案。图形抽象

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来源期刊

International Journal of Smart and Nano Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.30

自引率

5.10%

发文量

审稿时长

11 weeks

期刊介绍： The central aim of International Journal of Smart and Nano Materials is to publish original results, critical reviews, technical discussion, and book reviews related to this compelling research field: smart and nano materials, and their applications. The papers published in this journal will provide cutting edge information and instructive research guidance, encouraging more scientists to make their contribution to this dynamic research field.