EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF LONGITUDINAL AND HORIZONTAL RIBS ON FLEXURAL BEHAVIOR OF GRID STIFFENED COMPOSITE PLATES

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SHAHGHOLIAN GHAHFAROKHI DAVOUD; TAHANI VAHID; RAHIMI GHOLAM HOSSEIN

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Journal: Journal of Science and Technology of Composites Year:2017 | Volume:3 | Issue:4 Page(s): 333-342

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Title

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF LONGITUDINAL AND HORIZONTAL RIBS ON FLEXURAL BEHAVIOR OF GRID STIFFENED COMPOSITE PLATES

Author(s)

SHAHGHOLIAN GHAHFAROKHI DAVOUD | TAHANI VAHID | RAHIMI GHOLAM HOSSEIN | Issue Writer Certificate

Keywords

THREE-POINT BENDINGQ2

GRID COMPOSITE PLATEQ2

LONGITUDINAL RIBSQ2

HORIZONTAL RIBSQ2

Abstract

Grid structures most widely used in the aerospace, missile and Marine industry because have made: ideal mechanical properties, special stiffness and high strength. In this research, experimental and numerical investigations of the effect of longitudinal and HORIZONTAL RIBS have been on flexural behavior of GRID COMPOSITE PLATEs. For this purpose, four types of grid plates were considered with triangle, rhombus, large square, small square ribs. For the building these plates, silicone mold was designed and built and also was used for making plates from hand lay-up and hand-wound layer technique. Samples were subjected to a THREE-POINT BENDING test that for this purpose, the fixture was designed and built. From the numerical solution of the problem and compared with experimental results was observed that there is very little difference between experimental and numerical results. Results show that LONGITUDINAL RIBS had a tremendous effect on the specific maximum load So that by adding a horizontal rib increase in plate strength to 594%. However, the HORIZONTAL RIBS not only increases specific maximum load and specific stiffness, but also reduces the 14.7% strength and 9.26% specific stiffness because of increased weight. Priority to the ribs in terms of maximum strength is a large square, small square, triangular and rhombus and in terms of maximum stiffness is a large square, small square, rhombus and triangular.

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APA: Copy

SHAHGHOLIAN GHAHFAROKHI, DAVOUD, TAHANI, VAHID, & RAHIMI, GHOLAM HOSSEIN. (2017). EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF LONGITUDINAL AND HORIZONTAL RIBS ON FLEXURAL BEHAVIOR OF GRID STIFFENED COMPOSITE PLATES. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 3(4), 333-342. SID. https://sid.ir/paper/251681/en

Vancouver: Copy

SHAHGHOLIAN GHAHFAROKHI DAVOUD, TAHANI VAHID, RAHIMI GHOLAM HOSSEIN. EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF LONGITUDINAL AND HORIZONTAL RIBS ON FLEXURAL BEHAVIOR OF GRID STIFFENED COMPOSITE PLATES. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2017;3(4):333-342. Available from: https://sid.ir/paper/251681/en

IEEE: Copy

DAVOUD SHAHGHOLIAN GHAHFAROKHI, VAHID TAHANI, and GHOLAM HOSSEIN RAHIMI, “EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE EFFECT OF LONGITUDINAL AND HORIZONTAL RIBS ON FLEXURAL BEHAVIOR OF GRID STIFFENED COMPOSITE PLATES,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 3, no. 4, pp. 333–342, 2017, [Online]. Available: https://sid.ir/paper/251681/en

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