Fatigue and Fracture Mechanisms in Polymers
This article reviews generalized test methodologies for fatigue characterization of polymers and examines fatigue fracture mechanisms in different engineering plastics. It provides detailed micromechanistic images of crack-tip processes for a variety of semicrystalline and amorphous engineering polymers. The article describes fracture mechanics solutions and approaches to the fatigue characterization of engineering polymers when dealing with macroscale fatigue crack growth. It includes mechanistic images for high-density polyethylene, ultrahigh-molecular-weight polyethylene, nylon 6, 6, polycarbonate, and polypropylene. The article describes the micromechanisms of toughening of plastics and uses a macroscale approach of applying fracture mechanics to the fatigue life prediction of engineering polymers, building on the mechanistic concepts. It also describes the factors affecting fatigue performance of polymers.
Lisa Pruitt, Amy Wat, Louis Malito, Fatigue and Fracture Mechanisms in Polymers, Characterization and Failure Analysis of Plastics, Vol 11B, ASM Handbook, Edited By Todd J. Menna, ASM International, 2022, p 328–340, https://doi.org/10.31399/asm.hb.v11B.a0006918
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