SIMPLE METHOD FOR BUCKLING LOAD OF COMPOSITE CONICAL LATTICE STRUCTURES UNDER AXIAL LOAD

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NADERI ALI ASGHAR; RAHIMI GHOLAM HOSSIEN

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:15 Page(s): 290-298

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Information Journal Paper

Title

SIMPLE METHOD FOR BUCKLING LOAD OF COMPOSITE CONICAL LATTICE STRUCTURES UNDER AXIAL LOAD

Author(s)

NADERI ALI ASGHAR | RAHIMI GHOLAM HOSSIEN | Issue Writer Certificate

Keywords

BUCKLINGQ2

LATTICE CONICAL STRUCTUREQ2

PRELIMINARY DESIGNQ2

COMPOSITESQ2

Abstract

This paper describes a simple method for determining the critical BUCKLING load of composite LATTICE CONICAL STRUCTUREs under axially compressive load. To reveal the critical BUCKLING strength of conical lattice structures, an analytical method based on the classical beam-column theory was applied. Characteristic equations were built according to the equilibrium equations. Furthermore, the BUCKLING behavior of the conical composite shells under axial compression were investigated using experimental method. The specimens used in the experiment were made from glass/epoxy by winding the continuous glass fibers wetted with epoxy on a die with helical and circumferential grooves adopting a simplified manufacturing process. A relatively new flexible tool was developed for forming the grid-structures die, and the specimens were tested by using a universal testing machine. The diagrams of axial load versus displacement were recorded in real time during the tests. The experimental results describe failure modes that are present in the structures such as rib crippling, and general BUCKLING. Axial BUCKLING tests were carried out and the results were compared with the analytical method. The results have been summarized to verify the analytical method. Also, the proposed model was verified with the aid of finite element analysis. The proposed model suggests the possibility to improve the PRELIMINARY DESIGN solution with respect to the fully analytical approach.

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APA: Copy

NADERI, ALI ASGHAR, & RAHIMI, GHOLAM HOSSIEN. (2015). SIMPLE METHOD FOR BUCKLING LOAD OF COMPOSITE CONICAL LATTICE STRUCTURES UNDER AXIAL LOAD. MODARES MECHANICAL ENGINEERING, 14(15), 290-298. SID. https://sid.ir/paper/177721/en

Vancouver: Copy

NADERI ALI ASGHAR, RAHIMI GHOLAM HOSSIEN. SIMPLE METHOD FOR BUCKLING LOAD OF COMPOSITE CONICAL LATTICE STRUCTURES UNDER AXIAL LOAD. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(15):290-298. Available from: https://sid.ir/paper/177721/en

IEEE: Copy

ALI ASGHAR NADERI, and GHOLAM HOSSIEN RAHIMI, “SIMPLE METHOD FOR BUCKLING LOAD OF COMPOSITE CONICAL LATTICE STRUCTURES UNDER AXIAL LOAD,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 15, pp. 290–298, 2015, [Online]. Available: https://sid.ir/paper/177721/en

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