Anisogrid stiffened panel under axial compression: Manufacturing, numerical analysis and experimental testing

2021 ◽  
Vol 161 ◽  
pp. 107483
Author(s):  
S. Niemann ◽  
H.N.R. Wagner ◽  
C. Hühne
Keyword(s):  
Numerical Analysis ◽  
Axial Compression ◽  
Experimental Testing ◽  
Stiffened Panel

scholarly journals Overall buckling analysis on different formed circular steel tubular columns under axial compression

2019 ◽  
Vol 277 ◽  
pp. 03017
Author(s):  
Xi Feng Yan
Keyword(s):  
Numerical Analysis ◽  
Axial Compression ◽  
Experimental Studies ◽  
Three Dimensional ◽  
Element Model ◽  
Welded Steel ◽  
Eurocode 3 ◽  
Column Design ◽  
Hot Rolled ◽  
Overall Buckling

This paper presents a numerical finite element model (FEM) investigation on the overall buckling behaviour of hot-rolled (HR), submerged arc welded (SAW) and high-frequency welded (HFW) steel circular columns under axial compression. Three dimensional FEM of circular hollow sections were developed using shell elements considering material nonlinearities, geometric imperfections and residual stress. The established FEM was used to simulate experimental studies conducted by past researchers. Good agreement has been found between numerical analysis and past researchers results, which has validated the reasonability of the FEM to carry out further investigation. Based on the validated FEM, numerical analysis incorporating 180 numerical generated HR, SAW and HFW steel circular columns with various section sizes and slenderness were carried out. The numerical analysis results were compared with the existing column design curves in Chinese, European and American codes. The numerical results showed that the design resistances for hot-rolled and welded steel circular columns calculated based on design curve a in both GB 50017-2003 and Eurocode 3 and the design formula in ANSI/AISC 360-2016 should be accepted. In addition, to further improve the design efficiency, new column design curves for hot-rolled and welded steel circular columns were recommended based on the expressions in GB 50017-2003 and Eurocode 3.

scholarly journals Numerical Analysis of Axial Compression Performance of Concrete Filled Double Steel Tube Short Columns

2018 ◽  
Vol 439 ◽  
pp. 042058
Author(s):  
Jing Ji ◽  
Dianyou Yu ◽  
Liangqin Jiang ◽  
Shilong Zhang ◽  
Maomao Yang
Keyword(s):  
Numerical Analysis ◽  
Axial Compression ◽  
Steel Tube ◽  
Compression Performance ◽  
Short Columns

Experimental Testing and Numerical Analysis of a Barrel Vault

Structures ◽  
2018 ◽  
Vol 15 ◽  
pp. 138-151 ◽  
Author(s):  
Mariella Diaferio ◽  
Marilena Venerito ◽  
Michele Vitti
Keyword(s):  
Numerical Analysis ◽  
Experimental Testing

scholarly journals Numerical analysis and experimental testing of ultra-high performance fibre reinforced concrete keyed dry and epoxy joints in precast segmental bridge girders

2019 ◽  
Vol 11 (4) ◽  
pp. 463-472
Author(s):  
Balamurugan A. Gopal ◽  
Farzad Hejazi ◽  
Milad Hafezolghorani ◽  
Voo Yen Lei
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Numerical Model ◽  
High Performance ◽  
Experimental Testing ◽  
Shear Capacity ◽  
Numerical Results ◽  
Fiber Reinforced Concrete ◽  
Shear Behaviour ◽  
Segmental Bridges

Abstract Although ultra-high performance fiber reinforced concrete (UHPFRC) has been used recently as a sustainable construction technique for many precast segmental bridges (PSBs), no exhaustive numerical and experimental studies exist to assess the shear capacity and failure pattern of the joints in these bridges. Hence, to accurately investigate the shear behavior of the joints in UHPFRC precast segmental bridges, a numerical analysis model based on finite-element code was established in this study. Concrete damaged plasticity model was used to analyze the UHPFRC joint models by considering all the geometries, boundaries, interactions and constraints. In this paper, the numerical model was calibrated by two full-scale UHPFRC keyed dry and epoxy joints under confining pressure effect. The excellent agreement between the numerical results and experimental data demonstrated the reliability of the proposed numerical model. The validated numerical model was then utilized to investigate the parameters affecting shear behaviour of the joints in PSBs. For this purpose, 12 FE models were analyzed under different variable parameters namely, number of shear keys, confining stress, and types of joints (dry or epoxy). Furthermore, the numerical results were also compared with the five existing shear design provision models available in literature in terms of ultimate shear capacity.

Seismic Behaviors of Concrete-Filled T-Shaped Steel Tube Columns

2008 ◽  
Vol 400-402 ◽  
pp. 677-683 ◽  
Author(s):  
Yu Yin Wang ◽  
Yuan Long Yang ◽  
Su Mei Zhang ◽  
Jie Peng Liu
Keyword(s):  
Numerical Analysis ◽  
Energy Dissipation ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Concrete Strength ◽  
Steel Tube ◽  
Compression Stress ◽  
Analysis Program ◽  
Energy Dissipation Capacity ◽  
Seismic Behaviors

Concrete-filled special-shaped (L-shaped, T-shaped, and cross-shaped, and etc.) steel tube column is a type of member in which concrete is poured into special-shaped steel tube so that steel and concrete support loads together. It improves the seismic behaviors of reinforced concrete special-shaped columns due to the better confining effects provided by the steel tube. A test research on the seismic behaviors of one concrete-filled T-shaped steel tube column with pseudo static method is presented and the load-displacement curve and skeleton curve are provided. Series of steel bar stiffeners were welded onto the steel tube in order to postpone the buckling of steel tube and to enhance confining effects. A numerical analysis program was developed using a fiber-based method. The constitutive model of concrete employed the modified Mander model, and that of steel employed a bi-linear model considering the Bausinger effect. The numerical analysis program was verified by the test results and parametric analysis was carried out, in which the influences of the ratio of axial compression stress to strength, steel tube thickness and concrete strength were mainly discussed. The following conclusions are obtained: with the increase of the ratio of axial compression stress to strength, the bearing capacity of member increases and the energy dissipation capacity improve, while the ductility deteriorates. With the increase of steel tube thickness, the initial rigidity, bearing capacity, ductility and energy dissipation capacity improves simultaneously. With the increase of concrete strength, the bearing capacity increases, the energy dissipation capacity improves, while the ductility deteriorates.

Numerical Analysis on the Barreling of Solid Cylinders Under Axisymmetric Compression

1985 ◽  
Vol 107 (2) ◽  
pp. 145-147 ◽  
Author(s):  
J. K. Banerjee ◽  
Gerardo Ca´rdenas
Keyword(s):  
Plastic Deformation ◽  
Numerical Analysis ◽  
Aspect Ratio ◽  
Axial Compression ◽  
Diameter Ratio ◽  
Reduction Ratio ◽  
Height Reduction ◽  
Dimensional Parameters

Diameter ratio, height reduction ratio, and aspect ratio are very significant non-dimensional parameters that govern the geometry of barreling throughout the process of plastic deformation of cylinder under axial compression.

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