Sharif Digital Repository

This research investigates the piezoresistivity of MWCNT/thermoplastic polyurethane (MWCNT-TPU) nanocomposite through both experimental and numerical modeling approaches. Piezoresistive materials are those whose electrical conductivity changes with deformation. Key challenges in the experimental phase included the potential for non-uniform nanoparticle dispersion and agglomeration, as well as the method of measuring electrical resistance under strain, given the inherently high electrical resistance of polymeric materials. In the modeling phase, challenges comprised the high computational cost due to the microstructure's geometry and properties, and the necessity of accounting for the...