Development and laboratory evaluation of a self-monitoring polymer geobelts

• DOI: 10.1016/j.measurement.2020.108214
• Publication Date: 2020-07-15T15:32:19Z
• Authors: Jiong Zhang; Rui She; Shuang Xia; Zhaoxia Dai; Nian Hu; Xinzhuang Cui; Ruonan Han; Ruiping Ming; Guodong Ma
• Keywords: 0211 other engineering and technologies; 02 engineering and technology

Abstract Due to the rise of smart city construction in recent years, there is a growing demand for materials that can both improve the mechanical properties of structures and carry out health monitoring and risk warning. In this paper, a self-monitoring polymer geobelt manufactured by 3D printing technology is proposed, which can embed conductive ABS material directly into non-conductive PLA material as conductive wire. This integrated resistance geobelt solves the problem of sensor contact to the outside of the grid and water which is easy to fall off and the test results are inaccurate. In this study, a series of tests were performed to study the development and laboratory evaluation of a tensoresistivity geobelts and conclusions were drawn as follows: The self-monitoring polymer geobelt made with PLA and conductive ABS showed good self-perception characteristics and recoverability, and the more the number of longitudinal layout of internal conductive wires, the more accurate the results showed. The relationship between resistance and tensile stress after normalized at ends of the geobelt can be fitted by parabola f = A + Br + Cr2, and the strain of smart geobelt ranges from 2.1 to 10%.