Effect of Plastic Strain on Crack Initiation Polymer Material Behavior  Brake Fluid Reservoir Automotive

This paper discusses the intensive research on polypropylene, a significant polymeric material, and its extensive application in the automotive industry, particularly in the manufacture of brake fluid reservoirs through a series of laboratory destruction tests and experiments, The paper emphasizes the triaxiality (Triax) investigate the material behavior under various stress states and critical factors for the understanding of crack formation intention and the mechanical behavior of polypropylene under mechanical loads. This study lies in the detailed evaluation of polypropylene behavior under various manufacturing conditions, addressing potential deviations that could affect final product quality. The findings demonstrate the materials robustness, and its excellent characteristics minimize crack initiation, leakage, damage, and other defects during the manufacturing process, ensuring reliable use in reservoir production. The research methodology involved a series of tests and experimental procedures, such as Melt Flow Index (MFI) testing to select suitable material, burst pressure tests for hot plate joint integrity, air tests to confirm tightness, high and low temperature humidity chamber tests, tilt alarming test, and a volume test to check the deviation during manufacturing. The novel aspects of this study are the demonstration of the mechanical behaviour of polypropylene and the valuable insights provided into the brake fluid reservoir manufacturing process and performance, offering significant implications for automation in the automotive sector.