Results 91 to 100 of about 1,244,963 (238)

Geometric Imperfection Measurements and Validations on Cold-Formed Steel Channels Using 3D Noncontact Laser Scanner

, 2018
A three-dimensional (3D) noncontact laser-scanning method to quantify the deviations in cold-formed steel (CFS) channel sections (plain and lipped) is presented. The methodologies to segregate the different categories of imperfections from the deviations
Selvaraj, Sivaganesh, Mahendrakumar Madhavan, Sivaganesh Selvaraj, Madhavan, Mahendrakumar   +3 more
core   +1 more source

GEOMETRICAL EFFECTS IN RESONANT GAS OSCILLATIONS

, 1993
It is known that the response of a cylindrical acoustic resonator to excitation by an oscillating piston can contain shock waves if the detuning is sufficiently small.
CHESTER, W, PEAKE, M, OCKENDON, John, OCKENDON, J, OCKENDON, H   +4 more
core   +1 more source

On Introducing Imperfection in the Non-Linear Analysis of Buckling of Thin Shell Structures

, 2014
This master thesis details the investigation of the effect of geometrical imperfection on thin shell structures using general FEM software packages. The author proposes a finite element based method for the analysis and design of thin shell structures ...
Chen, T. (author)
core  

Stability Analysis of Nantong Sports and Exhibition Center Based on Measured Geometrical Imperfections

, 2010
Position deviation of joints is a primary initial geometrical imperfection that affects the stability of long-span spatial structures. It makes field measurement of joint coordinate for the shell and roof initial shape of Nantong Sports Exhibition Center
Cai Qi Zhao, Jun Ma, De Lin Li
core   +1 more source

Multiobjective optimization of fiber composite shells for maximum buckling load and imperfection tolerance.

, 1993
The performance of thin-walled structures, which are endangered by buckling, is often strongly influenced by geometrical imperfections. It is impossible to know in advance the imperfections,which will be present in the real structure.
Zimmermann, R.
core  

Numerical Study on Ultimate Behaviour of Bolted End-Plate Steel Connections

Latin American Journal of Solids and Structures
Bolted end-plate steel connections have become more popular due to ease of fabrication. This paper presents a three dimension Finite Element Model (FEM), using the multi-purpose software ABAQUS, to study the effect of different geometrical parameters on ...
R.E.S. Ismail, A.S. Fahmy, A.M. Khalifa, Y.M. Mohamed   +3 more
doaj   +1 more source

Buckling of Cylindrical Steel Tanks With Oblique Body Imperfection Under Uniform External Pressure

, 2017
Shell structures are built using a number of welded curved panel parts. Hence, some geometrical imperfections emerge. These imperfections have a direct impact on structural behavior of shells during the external compressive loading.
Mehdi Rastgar, Hossein Showkati
core   +1 more source

Geometrically Nonlinear Dynamic Analysis of an Imperfect, Stiffened, Functionally Graded, Doubly Curved Shell

Dynamics
An analytical study of the nonlinear response of imperfect stiffened doubly curved shells made of functionally graded material (FGM) is presented. The formulation of the problem is based on the first-order shear deformation shell theory in conjunction ...
Boutros Azizi, Habib Eslami, Kais Jribi
doaj   +1 more source

Influence of geometrical imperfection of rib stiffeners on beam-to-column joint behaviour

, 2019
The introduction of rib stiffeners in the extended end-plate joints can guarantee a beneficial increase of both the strength and ductility of the connection.
Tartaglia R., Di Lorenzo Gianmaria, D'Aniello M., Landolfo R.   +3 more
core  

Influence of Imperfections on the Effective Stiffness of Multilayer Corrugated Board. [PDF]

Materials (Basel), 2023
Mrówczyński D, Garbowski T.
europepmc   +1 more source