Optimising the elastic constants of Vachellia nilotica, Prosopis juliflora and Vachellia leucophloea/ceramic fillers epoxy composites using GRA

= 62.70%) for optimisation. SEM results show that the SiC-filled composite possesses uniform dispersion and strong interfacial bonding, leading to superior mechanical performance. These results demonstrate that the proposed natural fibre hybrid composites provide enhanced stiffness and strength, confirming their suitability for lightweight structural and electrical insulation applications.