Study on Young's Modulus, Fracture toughness & Energy of Composites Reinforced by ZnO Nanoparticles through Regression Tree, ANN & RSM

Subject Areas : Nano

abdorreza alavi gharahbagh ¹ , Ali dadrasi ² , sasan folladpanjeh ³

1 - member of board/semnan university
2 - member of board/Islamic Azad University, Shahrood Branch,
3 - student/Laboratory of material & Polymer

Received: 2016-11-05 Accepted : 2016-12-31 Published : 2017-06-22

Keywords: Optimization, Artificial Neural Network, fracture toughness, Fracture energy, Response Surface Method,

Abstract :

A study on fracture toughness (KIC), fracture energy (GIC) and Young's modulus of styrene acrylonitrile composites by two volume content of 24% and 34% acrylonitrile has been conducted. ZnO nanoparticles were added to composites up to 1 vt%. Volume percent parameter has been described as a sensational parameter. The experimental results indicate that adding ZnO nanoparticles increase the mechanical properties and in some cases, it decreases them. Also the experimental results and the results of modeling show that the second order response surface method makes the best prediction. Additionally, the best value for Fracture toughness is 2.283 MPa.m1/2 when the volume percent of styrene acrylonitrile is 34% and volume percent of ZnO is 0.1%. Also, the best value for fracture energy is equal to 1101 J/m2, when the volume percent of styrene acrylonitrile is 34% and the volume percent of ZnO is 0.33%. And finally, this method shows that the best value for Young's modulus is 4.281 GPa when the volume percent of styrene acrylonitrile is 31% And volume percent of the particle is 0.5%.