THE EFFECT OF FIBER WAVINESS ON THE STIFFNESS OF A POLYMER COMPOSITE MATERIALстатья
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Дата последнего поиска статьи во внешних источниках: 10 июля 2024 г.
Аннотация:It is known that the initial fiber waviness affects the stiffness and strength of the polymer composite material.The influence of degree of waviness on stiffness characteristics under uniaxial tension and compression of apolymer composite material was investigated by using numerical modeling. A computational approach basedon a special periodicity cell with different fiber waviness was developed. The hypothesis regarding the impact ofmanufacturing stresses, appearing during a curing process on waviness growth, was tested. The results obtainedexplain the mechanism that causes difference in the stiffness observed in fiber composites in the longitudinaldirection under uniaxial tension and compression.This work was supported by the Russian Science Foundation, grant No. 20-11-20230-P.