Ritz solution for buckling analysis of thin-walled composite channel beams based on a classical beam theory

  • Nguyen Ngoc Duong Faculty of Civil Engineering, HCMC University of Technology and Education, No 1 Vo Van Ngan street, Thu Duc district, Ho Chi Minh city, Vietnam
  • Nguyen Trung Kien Faculty of Civil Engineering, HCMC University of Technology and Education, No 1 Vo Van Ngan street, Thu Duc district, Ho Chi Minh city, Vietnam
  • Nguyen Thien Nhan Faculty of Engineering and Technology, Kien Giang University, 320A Route 61, Chau Thanh district, Kien Giang province, Vietnam

Abstract

Buckling analysis of thin-walled composite channel beams is presented in this paper. The displacement field is based on classical beam theory. Both plane stress and plane strain state are used to achieve constitutive equations. The governing equations are derived from Lagrange’s equations. Ritz method is applied to obtain the critical buckling loads of thin-walled beams. Numerical results are compared to those in available literature and investigate the effects of fiber angle, length-to-height’s ratio, boundary condition on the critical buckling loads of thin-walled channel beams.

Keywords:

Ritz method; thin-walled composite beams; buckling.

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Published
31-08-2019
How to Cite
Duong, N. N., N. T. Kien, and N. T. Nhan. “Ritz Solution for Buckling Analysis of Thin-Walled Composite Channel Beams Based on a Classical Beam Theory”. Journal of Science and Technology in Civil Engineering (STCE) - NUCE, Vol. 13, no. 3, Aug. 2019, pp. 34-44, doi:10.31814/stce.nuce2019-13(3)-04.
Section
Research Papers