%0 Journal Article %T Experimental study and optimization of fracture properties of epoxy-based nano-composites: Effect of using nano-silica by GEP, RSM, DTM and PSO %A علی دادرسی %A غلامعلی فرزی %A Shariati, Mahmoud %A فولادپنجه %A ولی پروانه %J Engineering Fracture Mechanics %@ 0013-7944 %D 2020