نتایج جستجو برای: torsional buckling
تعداد نتایج: 14775 فیلتر نتایج به سال:
A warping-inclusive kinematic coupling method to be used in finite-element analysis of members featuring wide-flange cross sections is proposed this paper. This mixed-dimension macromodels that combine continuum and beam-column elements reduce the computational cost purely models. The method, utilizing either linear or nonlinear constraint equations, implemented validated a commercial software;...
We evaluated the mechanical properties and torque/force generated during canal shaping by four NiTi files with innovative designs. Each of 52 TruNatomy Prime, XP-endo Shaper, Spring Endo unheated finish (Spring Endo), heated H) were subjected to bending, buckling, cyclic fatigue, torsional resistance tests (n = 10 per file type). Canal was simulated J-shaped resin blocks 10). Phase transformati...
The present paper aims to develop an Artificial Neural Network (ANN) formula predict the lateral-torsional buckling (LTB) resistance of slender steel cellular beams. A finite element model is developed and validated through experimental tests followed by a parametric study. 768 models are employed train ANN formula. results compared with analytical as well equation predicted ANN. It was conclud...
The combination of timber elements and steel beams can be high interest for mechanical performances including instabilities fire protection. In this paper, experiments numerical modelling are performed to analyse the behavior various configurations steel-timber in bending. Two connected web flanges beam. order define material properties tested elements, each component (wood steel) has been sepa...
Abstract For the stability assessment of members and structures according to EN 1993‐1‐1 equivalent member method, geometrical nonlinear calculation with imperfections or GMNIA analysis residual stresses can be used alternatively. The second possibility requires a corresponding model for cross‐section resistance. verification lateral torsional buckling, bow e0 out plane are defined, which lead ...
In this paper, we determine numerically a large class of equilibrium configurations of an elastic two-dimensional continuous pantographic sheet in three-dimensional deformation consisting of two families of fibers which are parabolic prior to deformation. The fibers are assumed: i) to be continuously distributed over the sample, ii) to be endowed of bending and torsional sti↵nesses and iii) tie...
Failure loads of sheet pile having various profiles such as U, Z and Omega/Hat under compression was carried out by using equations strength materials compared the failure load modes Euler’s buckling, torsional buckling due to yielding. Compared flexure finite element analysis. Sheet can be analyzed a unit cell for simplified For selecting with omega/Hat section profile containing one eight num...
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