Research Papers

Thin-Walled Rods With Semiopened Profiles

[+] Author and Article Information
V. Kobelev

Dept. Mechanical Engineering,
University of Siegen,
Paul-Bonatz-Straße 9-11,
D-57068 Siegen, Germany,
email: kobelev@imr.mb.uni-siegen.de

Manuscript received March 24, 2010; final manuscript received May 28, 2012; accepted manuscript posted June 6, 2012; published online October 29, 2012. Editor: Robert M. McMeeking.

J. Appl. Mech 80(1), 011011 (Oct 29, 2012) (13 pages) Paper No: JAM-10-1093; doi: 10.1115/1.4006935 History: Received March 24, 2010; Revised May 28, 2012; Accepted July 06, 2012

The analysis of thin-walled rods with semiopened cross-section is performed in this article. An essential characteristic for this class of thin-walled beamlike structures is their closed but flattened profile. The unusual shape of semiopened thin-walled beams allows the efficient optimization due to wide variability of shapes. One popular application of the theory of semiopened thin-walled beams is the twist beam of the semisolid suspension.

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Fig. 1

Open, closed, and semiopened profiles

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Fig. 2

Geometry of semiopened profile and local coordinate system

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Fig. 3

Coordinate system, associated with the baseline of the semiopened profile

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Fig. 4

Tangential and shear stresses in the semiopened profile

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Fig. 5

Equilibrium of stresses in the element of semiopened profile

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Fig. 6

Principal elements of the semisolid axle

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Fig. 7

Twist moment of the semiopened profile My and loads on the wheels due to vehicle roll moment

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Fig. 8

Terminal bending moments of the semiopened profile due to lateral load in vehicle side direction

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Fig. 9

Terminal bending moments of the semiopened profile due to twist moment on the wheel in vehicle travel direction

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Fig. 10

Cross-section of semiopened twist beam with V1-profile

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Fig. 11

Cross-section of semiopened twist beam with Y-profile

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Fig. 12

Cross-section of semiopened twist beam with X-profile

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Fig. 13

Cross-section of semiopened twist beam with Cruz-profile

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Fig. 14

Cross-section of semiopened twist beam with H-profile

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Fig. 15

Cross-section of semiopened twist beam with U-profile

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Fig. 16

Cross-section of semiopened twist beam with V2-profile



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