Results 241 to 250 of about 22,033 (298)

Quadruple-refocused spin-locking: A robust method for high-amplitude T_1ρ imaging. [PDF]

Magn Reson Med
Wan C, Gram M, He W, Xu Z, Chen Q, Littin S, Lange T, Zaitsev M.   +7 more
europepmc   +1 more source

Stability of tapered and stepped steel columns with initial imperfections

Engineering Structures, 2005
Raftoyiannis, IG, Ermopoulos, JCh
exaly   +2 more sources

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Investigations of initial imperfections of steel scaffold structures

Ce/Papers, 2021
AbstractAnalysis and design of structures sensitive to second order effects require to take into account initial imperfections. Scaffold structures, due to their low rigidity, are very sensitive to second order effects. The accuracy of the design of such structures is based in part on the estimation of initial imperfections affecting the structure.
Charlotte Mercier, Abdelouahab Khelil, Firas Al Mahmoud   +2 more
exaly   +2 more sources

Buried Pipe Modeling With Initial Imperfections

Journal of Pressure Vessel Technology, 2004
A formulation using the finite element method is presented in this paper to analyze stresses and displacements of underground pipelines with initial imperfections. The formulation includes both thermal expansion of the pipeline and internal pressure. The method is based on large deformation beam theory with the finite element formulation based on Euler-
Villarraga, Junes A, RODRIGUEZ MATAS, JOSE FELIX, Martínez, Cora   +2 more
openaire   +2 more sources

On effect of initial imperfections on parametric vibrations of cylindrical shells with geometrical non-linearity

International Journal of Solids and Structures, 2012
The effect of initial imperfections on the parametric vibrations of cylindrical shells is analyzed. The shell has moderate amplitudes of vibrations; therefore, geometrically nonlinear theory is used.
Roman Kochurov, K V Avramov
exaly   +2 more sources

Stayed Column with Initial Imperfection

Journal of the Structural Division, 1982
The effect of an initial out-of-straightness on the buckling strength of a single-crossarm stayed column is investigated. A geometrical study of the stayed column is used to determine the relationship between the applied load, lateral deflection and the tension in the stays.
Kevin C. Wong, Murray C. Temple
openaire   +1 more source

Critical initial imperfection of structures

International Journal of Solids and Structures, 1990
Abstract A method is introduced for determining the critical initial imperfection of discretized structures that decreases the load-bearing capacity most rapidly. The effects of imperfections on simple critical points, such as limit points of loads and simple bifurcation points, are theoretically investigated based on the idea of the Lyapunov-Schmidt
Ikeda Kiyohiro, Murota Kazuo
openaire   +1 more source

Random initial imperfections of structures

International Journal of Solids and Structures, 1991
Abstract This paper is a theoretical study on random initial imperfections of structures. The explicit form of probability density function of the load-bearing capacity (critical load) of structures is derived for random initial imperfections based on a decomposition of the space of imperfection vectors into two orthogonal subspaces: the subspace ...
Ikeda Kiyohiro, Murota Kazuo
openaire   +1 more source

Initial Imperfections due to Welding

2016
Tetsuya Yao, Masahiko Fujikubo
exaly   +2 more sources

Thin-Walled Cold-Formed Compressed Steel Members and the Problem of Initial Imperfections

Procedia Engineering, 2012
The paper deals with the influence of initial imperfections caused by the production process and presents fundamental information about experimental and theoretic-numerical research to determine the load-carrying capacity of thin-walled cold-formed ...
Mohamad Al Ali, Michal Tomko
exaly   +2 more sources