Polymer Composites with Nanomaterials for Strain Gauging: A Review

As the complexity of structures and materials used in modern engineering increases, so does the need for more accurate and reliable methods of stress and strain monitoring. Strain gauges, in turn, are used to measure force or strain on the surface of an object. Strain gauges and strain gauge transducers are important tools in the field of materials resistance research to measure stresses and strains in solids. These methods and devices have a wide range of applications, from construction to mechanical engineering, where the mechanical properties of materials need to be monitored and optimized. The paper considers different types of composites based on polymer matrices with additives of dispersed nanomaterials, which are designed for strain gauge tasks. Thermoplastics and elas-tomers can be used as polymer matrices. Dispersed fillers can be based on MXene and nano-materials: carbon nanotubes, graphene, metals, etc. Despite the obvious advantages of strain gauges based on conducting polymers modified with dispersed structures - there are problems of creating effective strain gauges with the ability to operate under large deformations with im-proved sensitivity and accuracy of measurements in a wide range. The use of nanomaterials in strain gauges allows for more sensitive and compact sensors. Nanotechnology makes it possible to create strain gauges with improved mechanical and electrical properties. At the same time, nanomaterials have unique properties that make them ideal for use in strain gauges. The purpose of this review study is to determine the prospects for the use of various nanomaterials as additives in polymers to create strain gauges.