A.R Moallemzadeh - Ph.D. Student, Department of Composites, Iran Polymer and Petrochemical Institute, Tehran, Iran
S. A.R. Sabet - Associate Professor, Department of Composites, Iran Polymer and Petrochemical Institute, Tehran iran
H Abedini - Assistant Professor, Department of Engineering, Iran Polymer and Petrochemical Institute, Tehran, Iran

Study of polymer composites under impact load has received extensive attention, but one area which has recently been the interest of scientific community is the impact load under prestress condition. Therefore, this paper tries to identify and use special innovative apparatus, which is patented with number 83450 as a protected invention, that has required accuracy and ability with proper cost in order to create special attention to the types of preloads or loading history in laboratory and industrial studies, achieving more accurate recognition of polymer or especially composite structures’ respond to applied loads and especially impact loading in order to be insure of structure’s reliability during tolerated work conditions

Special device - Biaxial preload – Composite – High velocity Impact – Inventive apparatus