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Investigation of Mechanical Properties for Blend Epoxy-Polysulfide Reinforced with Woven Carbon and Glass Fiber | ||
| Mechanics of Advanced Composite Structures | ||
| مقاله 14، دوره 13، شماره 1 - شماره پیاپی 27، تیر 2026، صفحه 185-195 اصل مقاله (951.47 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/macs.2025.34964.1711 | ||
| نویسندگان | ||
| Waleed Hamed Hamza؛ Orhan Sabah Abdullah* ؛ Ibtihal Abdulrazak Mahmood | ||
| Mechanical Engineering Department, University of Technology-Iraq, Baghdad, Iraq | ||
| تاریخ دریافت: 16 مرداد 1403، تاریخ بازنگری: 30 اسفند 1403، تاریخ پذیرش: 24 اردیبهشت 1404 | ||
| چکیده | ||
| In this work, the effect of the axial buckling load characteristics of a composite material consisting of epoxy resin (EP) and different weight percentages of polysulfide (PS) (0%, 2%, 4%, 6%, and 8%) prepared and reinforced with woven carbon and glass fibers was studied. Buckling and tensile specimens were manufactured using hand lay-up techniques according to ASTM D6641, ASTM D638, and ASTM 3039 standards. Using eight layers of fibers in three stacking sequences S1(Carbon-Carbon-Glass-Glass)x2, S2(Carbon-Glass-Carbon-Glass)x2, and S3(Carbon-Glass-Glass-Carbon)x2 and different orientation angles (0, 30, 60, and 90°), testing was performed on critical buckling load specimens by applying an axial compressive force using a testing machine. Increasing the amount of polysulfide in blends made them more flexible, but it also made the critical buckling load, tensile stress, and modulus of elasticity properties decrease compared to the pure epoxy. It was also observed that the hybrid composite material made of (EP+6% PS) reinforced with fiber improved the critical buckling load and tensile stress by (186.6%, 141%, and 219%) and (760, 698%, and 875%) when the fibers layers arranged according to (S1, S2, and S3) models, correspondingly. The experimental results obtained manifested that the best value of the critical buckling load and tensile stress at stacking sequence (CGGC)x2 was when the carbon fibers were in the direction (0–90°) and when the axial force of tension and compression was in the direction of the fibers. | ||
| کلیدواژهها | ||
| Epoxy؛ Polysulfide؛ Carbon fiber؛ Stacking sequence؛ Buckling behavior | ||
| مراجع | ||
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