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

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