Finite Element Analysis on Hysteretic Behavior of Aluminium Columns under Cyclic Loading

2014 ◽  
Vol 1049-1050 ◽  
pp. 264-267
Author(s):  
Zheng Zhang ◽  
Yong Qian Zheng ◽  
Xue Chao Chen ◽  
Zhi Bin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Loading ◽  
Geometrical Nonlinearity ◽  
Initial Imperfection ◽  
Hysteretic Behavior ◽  
Constitutive Relationship ◽  
Low Carbon ◽  
Element Analysis ◽  
Steel Columns

The mechanical properties of axial compression aluminium members under cyclic loading were studied and compared with those of steel columns. In order to proceed to theoretical study on hysteretic behavior of aluminium columns, a method by finite element analysis was proposed. The method was based on FEA software, ANSYS. The analysis methods considered the effects of material nonlinearity, geometrical nonlinearity and initial imperfection. On this basis, hysteretic curves, reversal skeleton curves and stiffness degradation curves of 6061-T6 aluminium columns, 6061-T4 aluminium columns and Q235 steel columns under axial cyclic loading were obtained and compared. Results show that the hysteretic behavior of the aluminium columns is similar with the low carbon steel columns and is significantly influenced by constitutive relationship.

scholarly journals A Finite Element Study on Compressive Resistance Degradation of Square and Circular Steel Braces under Axial Cyclic Loading

2021 ◽  
Vol 11 (13) ◽  
pp. 6094
Author(s):  
Hubdar Hussain ◽  
Xiangyu Gao ◽  
Anqi Shi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Loading ◽  
Slenderness Ratio ◽  
Hysteretic Behavior ◽  
Element Analysis ◽  
Section Shape ◽  
Axial Cyclic Loading ◽  
Global Buckling ◽  
Parametric Studies

In this study, detailed finite element analysis was conducted to examine the seismic performance of square and circular hollow steel braces under axial cyclic loading. Finite element models of braces were constructed using ABAQUS finite element analysis (FEA) software and validated with experimental results from previous papers to expand the specimen’s matrix. The influences of cross-section shape, slenderness ratio, and width/diameter-to-thickness ratio on hysteretic behavior and compressive-tensile strength degradation were studied. Simulation results of parametric studies show that both square and circular hollow braces have a better cyclic performance with smaller slenderness and width/diameter-to-thickness ratios, and their compressive-tensile resistances ratio significantly decreases from cycle to cycle after the occurrence of the global buckling of braces.

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