EXPERIMENTAL AND NUMERICAL INVESTIGATION OF EFFECT OF SHAPE OF RIBS ON FLEXURAL BEHAVIOR OF GRID COMPOSITE PLATES

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TAHANI VAHID; SHAHGHOLIAN GHAHFAROKHI DAVOUD; RAHIMI GHOLAM HOSSEIN

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:6 Page(s): 303-311

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Title

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF EFFECT OF SHAPE OF RIBS ON FLEXURAL BEHAVIOR OF GRID COMPOSITE PLATES

Author(s)

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

Keywords

FLEXUREQ2

GRID COMPOSITE PLATEQ1

TRIANGULAR RIBQ1

SQUARE RIBQ1

RHOMBIC RIBQ1

Abstract

With the arrival of composite materials and because of their unique properties, ideas were presented in order to strengthen and improve their performance. The ideas were reason for building of Grid composite structures. These structures are widely used in the aerospace, missile and Marine industry because of their ideal mechanical properties: special stiffness and high strength against impact and fatigue. GRID COMPOSITE PLATEs are made from thin composite shell connected a series of composite ribs. Ribs network results in a significant increase in stiffness and strength of structure. In this research, experimental and numerical investigations of effect of Shape of ribs have been on flexural behavior of GRID COMPOSITE PLATEs. For this purpose, three types of Grid plates were considered with triangle, square and RHOMBIC RIBs. For building these plates, silicone mold was designed and built and was also used for making plates from hand lay-up and hand-wound layer technique. Samples were subjected to three point bending test; for this purpose, the fixture was designed and built. From numerical solution of the problem and comparison of experimental results it was observed that there is very little difference between experimental and numerical results. Experimental results show that special flexural stiffness of plate with SQUARE RIB is 1.92 and 1.88 plate with triangular and RHOMBIC RIBs, respectively. Also, the flexural strength of plate with SQUARE RIB is 1.58 plate with TRIANGULAR RIB. Thus plate with SQUARE RIB has the highest stiffness and bending strength.

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APA: Copy

TAHANI, VAHID, SHAHGHOLIAN GHAHFAROKHI, DAVOUD, & RAHIMI, GHOLAM HOSSEIN. (2016). EXPERIMENTAL AND NUMERICAL INVESTIGATION OF EFFECT OF SHAPE OF RIBS ON FLEXURAL BEHAVIOR OF GRID COMPOSITE PLATES. MODARES MECHANICAL ENGINEERING, 16(6), 303-311. SID. https://sid.ir/paper/178806/en

Vancouver: Copy

TAHANI VAHID, SHAHGHOLIAN GHAHFAROKHI DAVOUD, RAHIMI GHOLAM HOSSEIN. EXPERIMENTAL AND NUMERICAL INVESTIGATION OF EFFECT OF SHAPE OF RIBS ON FLEXURAL BEHAVIOR OF GRID COMPOSITE PLATES. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(6):303-311. Available from: https://sid.ir/paper/178806/en

IEEE: Copy

VAHID TAHANI, DAVOUD SHAHGHOLIAN GHAHFAROKHI, and GHOLAM HOSSEIN RAHIMI, “EXPERIMENTAL AND NUMERICAL INVESTIGATION OF EFFECT OF SHAPE OF RIBS ON FLEXURAL BEHAVIOR OF GRID COMPOSITE PLATES,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 6, pp. 303–311, 2016, [Online]. Available: https://sid.ir/paper/178806/en

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