期刊
JOURNAL OF MATERIALS SCIENCE
卷 52, 期 24, 页码 13966-13976出版社
SPRINGER
DOI: 10.1007/s10853-017-1480-0
关键词
-
资金
- National Natural Science Foundation of China [51271067, 11572101, 11672089]
The flexural behavior of two kinds of PPS-based composites (carbon and glass fiber woven fabric reinforcements) from 23 to 200 A degrees C was evaluated in terms of load-displacement curves, stiffness, strength and failure mechanisms. With the increase in temperature, the bending stiffness for carbon and glass fiber-reinforced thermoplastic composites decreased by 36.71 and 34.98%, and bending strength deceased by 68.44 and 61.23%, respectively. The failure mode shifted from a brittle fracture to a ductile manner with the increase in temperature owing to the enhanced plasticization of matrix. Dynamic mechanical analysis was performed to characterize the glass transition and decomposition processes of both PPS-based composites and to establish the relationship between temperature and mechanical properties . Compared with the different empirical models, a new simple and stable thermo-mechanical model was proposed to estimate the variation of flexural properties for both thermoplastic composites with temperature.
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