COMPARING DEFORMATION MODES OF COMPOSITE AND ALUMINUM COLUMNS WITH SQUARE CROSS–SECTION DURING FLATTENING PROCESS

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ELAHI SEYED MOHAMMAD; ROUZEGAR JAFAR; Assaee Hasan

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Seminar Paper

Paper Information

Seminar: CONFERENCE OF IRANIAN AEROSPACE SOCIETY
Year:2015 | Issue:14

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Title

COMPARING DEFORMATION MODES OF COMPOSITE AND ALUMINUM COLUMNS WITH SQUARE CROSS–SECTION DURING FLATTENING PROCESS

Author(s)

ELAHI SEYED MOHAMMAD | ROUZEGAR JAFAR | Assaee Hasan

Keywords

FLATTENING

COMPOSITE

ALUMINUM

COLUMN

DEFORMATION

Abstract

SQUARE AND CIRCULAR SECTIONED TUBES ARE ONE OF THE MOST COMMONLY USED STRUCTURAL ELEMENTS DUE TO THEIR PREVALENT OCCURRENCE AND EASY MANUFACTURABILITY. FOR EXAMPLE, SQUARE TUBES CAN DISSIPATE ELASTIC AND INELASTIC ENERGY THROUGH DIFFERENT MODES OF DEFORMATION. SUCH METHODS OF DEFORMATION INCLUDE LATERAL COMPRESSION, LATERAL INDENTATION, AXIAL CRUSHING, SPLITTING AND TUBE INVERSION. IN THIS PAPER, A COMPARATIVE EXPERIMENTAL STUDY ON THE LATERAL COMPRESSION OF SQUARE ALUMINUM AND COMPOSITE COLUMNS IS PRESENTED. THE ALUMINUM SPECIMENS WERE MADE OF AVAILABLE COMMERCIAL COLUMNS AND COMPOSITE SPECIMENS WERE FABRICATED FROM E-GLASS FIBERS AND EPOXY RESIN. THE ANGLES BETWEEN FIBERS AND TUBE AXIS WERE 30˚/-30˚. THE ENDS OF FABRICATED COLUMNS WERE CUT OUT TO ENSURE THAT THE COLUMNS ARE FREE FROM BURRS OR UNEVEN ENDS. THE FABRICATED COLUMNS WERE CUT OUT TO THE DESIRED LENGTH. THREE ALUMINUM SPECIMENS HAD 35 MM SIDE LENGTH AND THE OTHER ALUMINUM SPECIMENS HAD 45 MM SIDE LENGTH. ALSO, ALL OF THE COMPOSITE SPECIMENS HAD THE SAME SIDE LENGTH OF 60 MM. THE DEFORMATION MODES OF ALUMINUM AND COMPOSITE SPECIMENS AND THE EFFECTS OF DEFORMATION MODES ON THEIR ENERGY ABSORPTION CAPACITIES ARE INVESTIGATED AND COMPARED. ALSO, THE LOAD-DISPLACEMENT DIAGRAMS OF ALUMINUM AND COMPOSITE SPECIMENS ARE SKETCHED AND THE INFLUENCES OF DEFORMATION MODES ON THE CORRESPONDING LOAD-DISPLACEMENT DIAGRAMS ARE INVESTIGATED. MEANWHILE, LATERAL COMPRESSION TESTS WERE CARRIED ON SOME ALUMINUM AND COMPOSITE SQUARE COLUMNS WITH DIFFERENT GEOMETRIES. SIX ALUMINUM SPECIMENS AND FIVE COMPOSITE SPECIMENS WERE PREPARED AND COMPRESSED LATERALLY BETWEEN TWO RIGID PLATES IN A DMG MACHINE MODEL 7166 AND THE EXPERIMENTAL APPEARANCES OF THE TESTS ARE DISCUSSED.

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Cite

APA: Copy

ELAHI, SEYED MOHAMMAD, ROUZEGAR, JAFAR, & Assaee, Hasan. (2015). COMPARING DEFORMATION MODES OF COMPOSITE AND ALUMINUM COLUMNS WITH SQUARE CROSS–SECTION DURING FLATTENING PROCESS. CONFERENCE OF IRANIAN AEROSPACE SOCIETY. SID. https://sid.ir/paper/945741/en

Vancouver: Copy

ELAHI SEYED MOHAMMAD, ROUZEGAR JAFAR, Assaee Hasan. COMPARING DEFORMATION MODES OF COMPOSITE AND ALUMINUM COLUMNS WITH SQUARE CROSS–SECTION DURING FLATTENING PROCESS. 2015. Available from: https://sid.ir/paper/945741/en

IEEE: Copy

SEYED MOHAMMAD ELAHI, JAFAR ROUZEGAR, and Hasan Assaee, “COMPARING DEFORMATION MODES OF COMPOSITE AND ALUMINUM COLUMNS WITH SQUARE CROSS–SECTION DURING FLATTENING PROCESS,” presented at the CONFERENCE OF IRANIAN AEROSPACE SOCIETY. 2015, [Online]. Available: https://sid.ir/paper/945741/en

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