Izod impact strength test Essays

A primary use of the Charpy and Izod tests is determining if a material experiences brittle to ductile transition with a decreasing temperature. Brittle to ductile transition is directly related to the temperature dependency of the impact energy absorbed. An examination of the failure surface can prove very beneficial. When a section of the failure surface seems to demonstrate appears

In recent years composites have been the subject of many scientific and research projects, as well as many commercial programs. Growing global ecological and social concern, the high rate of depletion of petroleum resources and new environmental policy has forced the search for new composites and green materials, compatible with the environment. Moreover calotropisgigantea fiber is a waste product. In recent years, scientists and engineers have been working mutually to use the inherent potency and

properties such as good appearance, high mechanical strength, and low toxicity. Tensile and flexural tests were run for PLA, HDPE, Polypropylene, and Polystyrene, and it turns out that PLA had the highest value of all of these different polymers.This means that the material has very high resistance to wear and tear over time. In an Izod impact test, the material actually had the lowest of these polymers, which means that PLA has a very low impact strength. For food packaging polymers, an important factor