Optimized enhanced energy absorption in polymer nanocomposites reinforced with nano-clay, nano-silica, and diethylenetriamine

In today's world, where various industries face ever-increasing developments, improving people's lives and preserving their property and lives are important issues in industrial production. One of the most unpleasant events in life is a collision while using the vehicle. Therefore, in recent decades, the high importance of this issue has attracted the attention of many researchers. The present study investigates the energy absorption of polymer nanocomposites with cylindrical and conical structures with different percentages of clay and silica nanoparticles to determine the various effects of nanomaterials and the effect of structure geometry on energy absorption under quasi-static tests. This experiment has been designed with the help of Design Expert software and the Box-Benken method. Also, nanomaterials between changes of 0-0.4% and diethylenetriamine material with weight% 1,3,5 have been used. From the results, it can be depicted that with the increase of the nanomaterial in this range, energy absorbed by the addition of nano silica up to the central point, i.e., 0.2%, an increase has been witnessed and after that, its intensity has decreased. Within this range, there is an observed significant rise of up to 0.4% for the nano clay material, while its trend keeps up with the previous intensity after the central point. However, in diethylenetriamine material, the highest energy absorption at the central point was 0.2%, after which a downward trend was observed. Also, in the investigation of the geometry of the structure, it was found that cone-shaped structures have higher energy absorption.