Abstract
The premature failure of polymers and its composites can be attributed to the development of cracks over the lifetime of the material. The formation of cracks in a material can ultimately result in the material failing catastrophically. In order to guarantee the performance, reliability, cost-effectiveness, and safety of polymer constructions, cracks need to be located and repaired in an efficient manner. The most recent method for detection with a particular emphasis on the beginning and development of cracks in polypropylene structures. In the scientific community, there is still ongoing discussion regarding the failure mechanism. The use of three-point bending tests was employed in order to investigate the fracture mechanism of polypropylene. The outcome of a three-point bending test reveals the presence of a large damage zone in front of the notch. In order to achieve better distributive and dispersive mixing, an extensional flow mixture (EFM) system was investigated. In comparison to the other composites, the EFM compounding process showed lower melt viscosities at high shear rates. Due to the significant plastic zone that is present in the area around the fracture tip, the elastoplastic fracture mechanics technique will be used.
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