Bungee Cord Design and Simulation for Field Tests

This study will show how ASTM D 412 tensile testing can be used to predict the elongation of bungee cords molded from compounds with different fillers. The first step is to create various compounds with different fillers being the changed variable. The second step is to measure the moduli of the bungee cords with different cross sectional areas and compare the data with the results obtained from the tests following ASTM D 412. Finally, the theoretical elongation of the compounds will be compared with the results of field test, which will consist of attaching a given weight to the end of the bungee, dropping that weight from a certain height, and measuring the length of bungee before it starts to retract.