In addition to the main materials of metallic materials with representatives of steels in common sense and ceramics as an inorganic material as we have discussed in the last chapter, there remains another important type of materials. Polymers as organic materials will be discussed in this chapter. From the viewpoint of volume instead of mass, the amount of polymers in applications has already exceeded iron and steel materials. Although the author is not an expert in the field of polymer materials, it is still important to understand all the three main categories of materials from the viewpoint of strengthening and toughening. This chapter addresses the strength and toughness of polymers with special emphasis placed on the research work the authors have performed so far.
KeywordsSilica Particle Fatigue Crack Propagation Si02 Particle Logarithmic Decrement Dynamic Fracture Toughness
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