Fracture Mechanics of Recycled Nanocomposite Structural Materials

Abstract

The increasing demand for sustainable materials has propelled the development of 
recycled nanocomposites for structural applications. These materials, incorporating recycled 
polymers or metals reinforced with nanoparticles, offer environmental benefits alongside 
mechanical enhancements. However, their fracture behavior remains a critical concern, influenced 
by recycling-induced defects, nanoparticle dispersion, and matrix-filler interactions. This paper 
examines the fracture mechanics of such materials, focusing on crack initiation, propagation, and 
toughening mechanisms. Through analytical models and simulations, we assess the impact of 
recycling processes on fracture toughness, fatigue resistance, and failure modes. Findings indicate 
that optimized nanoparticle alignment and interfacial modifications can mitigate degradation from 
recycling, achieving toughness comparable to virgin composites. The study provides guidelines 
for designing durable recycled nanocomposites, advancing eco-friendly structural engineering.