Results 31 to 40 of about 560 (113)

The free vibrational characteristic of PFGM beams near the post-buckling configuration under thermal loads

Science Progress
In recent years, the study of the static and dynamic mechanical behavior of porous functionally graded material (PFGM) structures has attracted much interest.
Qiang Lyu, Yinglong Zhao, Hongyao Zeng, Yuanyuan Mu   +3 more
doaj   +1 more source

Influence of web stiffeners in the bearing capacity of steel castellated beams subjected to failure by web post instability

Revista Ingeniería de Construcción, 2017
This work presents a numeric study using the Finite Element Method for castellated beams manufactured from Brazilian steel rolled I-sections, which collapse by web post buckling.
W. Vieira, G. Verissimo, J. L. Rangel, J. Lopes   +3 more
doaj   +6 more sources

The Effects of Boundary Conditions and Friction on the Helical Buckling of Coiled Tubing in an Inclined Wellbore. [PDF]

PLoS ONE, 2016
Analytical buckling models are important for down-hole operations to ensure the structural integrity of the drill string. A literature survey shows that most published analytical buckling models do not address the effects of inclination angle, boundary ...
Yinchun Gong, Zhijiu Ai, Xu Sun, Biwei Fu   +3 more
doaj   +1 more source

Post-Buckling Strength of Uniformly Compressed Plates

Transactions of the VŠB - Technical University of Ostrava. Construction Series, 2010
In this paper it is discussed how existing analytical and semi-analytical formulas for describing the elastic-post-buckling behavior of uniformly compressed square plates with initial imperfections, for loads up to three times the buckling load can be simplified and improved.
Rosmanit, Miroslav, Bakker, Monique C. M.   +1 more
openaire   +2 more sources

Study on helical post-buckling of motional coiled tubing in horizontal wells

Journal of Petroleum Exploration and Production Technology
Coiled tubing is widely used in oil and gas operations. However, the long coiled tubing may undergo sinusoidal or helical buckling deformations, and even lock-up, leading to property damage and serious accidents.
Zhuang Li, Liangyu Chen, Fei Yuan, Lei Zhao   +3 more
doaj   +1 more source

Post-Buckling Failure Mechanism and Optimal Tapered Termination Design for Composite Hat-Stiffened Panels

Aerospace
Composite hat-stiffened panels are widely used in civil aircraft structural design as typical closed-section stiffened components with high load-carrying efficiency.
Guofan Zhang, Chunhua Wan, Liang Chang, Xiaohua Nie   +3 more
doaj   +1 more source

Nonlinear analysis of stability for imperfect eccentrically stiffened FGM plates under mechanical and thermal loads based on FSDT. Part 1: Governing equations establishment

Vietnam Journal of Mechanics, 2015
In this paper, the buckling and post-buckling behaviors of eccentrically  stiffened functionally graded material (ES-FGM) plates on elastic  foundations subjected to in-plane compressive loads or thermal loads are  investigated by an analytical solution.
Dao Van Dung, Nguyen Thi Nga
doaj   +1 more source

Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method

Materials Research Express, 2020
This research predicts theoretically post-critical axial buckling behavior of truncated conical carbon nanotubes (CCNTs) with several boundary conditions by assuming a nonlinear Winkler matrix.
Mohammad Malikan, Victor A Eremeyev
doaj   +1 more source

Buckling and Post-buckling Performance of Advanced Composite Stiffened Panel Under Compression

Journal of Aeronautical Materials, 2016
The axial compressive experiment was conducted on the domestic advanced composite stiffened panel, and its buckling and post-buckling performance was analyzed by monitoring strain and out-of-plane displacement of typical positions.
ZHANG Haoyu, HE Yuting, FENG Yu, TAN Xiangfei, ZHENG Jie   +4 more
doaj   +1 more source

Buckling and post-buckling analysis of FGM plates resting on the two-parameter Vlasov foundation using general third-order plate theory

Archives of Mechanics
We present a nonlinear finite element analysis to investigate the buckling and post-buckling behaviour of functionally graded material (FGM) plates resting on the elastic foundation.
M. Taczała, R. Buczkowski, M. Kleiber
doaj   +1 more source