Prediction of the Young s modulus of SWCNTs/epoxy nanocomposites by considering SWCNTs curvature and local agglomeration

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 511

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شناسه ملی سند علمی:

COMPOSIT06_072

تاریخ نمایه سازی: 31 تیر 1398

چکیده مقاله:

In this study, the influence of SWCNTs agglomeration, curvature on prediction of Young’s modulus of SWCNTs/epoxy nanocomposites was investigated and compared with experimental results. SWCNTs/epoxy specimens containing 0.3, 0.5 wt.% SWCNTs and neat epoxy fabricated using high power dispersion sonicating and high-speed shearing method. Three different 3-D representative volume element (RVE) of SWCNTs/epoxy including incorporated cylindrical, curved-cylindrical and curved- cylindrical with agglomeration SWCNTs in epoxy matrix have been generated using Digimat-FE and their Young’s modulus obtained from Digimat-FE solver. Numerical results show that, the simplest RVE with considering cylindrical SWCNTs has the greatest error while the RVE with considering curved- cylindrical with agglomeration SWCNTs in epoxy has a good agreement with the experimental results. TEM images showed that, it is important to consider the SWCNTs agglomeration and curvature to predict Young’s modulus of nanocomposites accurately.

کلیدواژه ها:

Young’s Modulus prediction ، Single walled carbon nanotubes ، Digimat-FE ، SWCNTs agglomeration and curvature

نویسندگان

M.A Maghsoudlou,

M.Sc student, Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

R Barbaz Isfahani,

PhD student, Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

S Saber Samandari,

Assistant Professor, New Technologies Research Center, Amirkabir University of Technology, Tehran, Iran

M Sadighi,

Professor, Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran