scholarly journals BUCKLING BEHAVIOR OF EQUAL ANGLE RESTRAINED BY WELD SEAM AT BOTH ENDS: NUMERICAL ANALYSIS

2020 ◽  
Keyword(s):  
Numerical Analysis ◽  
Weld Seam ◽  
Equal Angle ◽  
Buckling Behavior

Study on the Local Buckling Behavior of Steel Equal Angle Members under Axial Compression with the Steel Strength Variation

2011 ◽  
Vol 374-377 ◽  
pp. 2430-2436
Author(s):  
Gang Shi ◽  
Zhao Liu ◽  
Yong Zhang ◽  
Yong Jiu Shi ◽  
Yuan Qing Wang
Keyword(s):  
Finite Element ◽  
Axial Compression ◽  
High Strength Steel ◽  
Local Buckling ◽  
Steel Structures ◽  
High Strength ◽  
Element Analysis ◽  
Equal Angle ◽  
Buckling Behavior ◽  
Steel Strength

High strength steel sections have been increasingly used in buildings and bridges, and steel angles have also been widely used in many steel structures, especially in transmission towers and long span trusses. However, high strength steel exhibits mechanical properties that are quite different from ordinary strength steel, and hence, the local buckling behavior of steel equal angle members under axial compression varies with the steel strength. However, there is a lack of research on the relationship of the local buckling behavior of steel equal angle members under axial compression with the steel strength. A finite element model is developed in this paper to analyze the local buckling behavior of steel equal angle members under axial compression, and study its relationship with the steel strength and the width-to-thickness ratio of the angle leg. The finite element analysis (FEA) results are compared with the corresponding design method in the American code AISC 360-05, which provides a reference for the related design.

Numerical and Experimental Buckling and Post - Buckling Analysis of Composite Cylindrical Panel with Delamination

2013 ◽  
Vol 477-478 ◽  
pp. 39-42
Author(s):  
Marek Barski ◽  
Aleksander Muc ◽  
Przemysław Pastuszak ◽  
Agnieszka Bondyra
Keyword(s):  
Numerical Analysis ◽  
Experimental Verification ◽  
Experimental Analysis ◽  
Cylindrical Panel ◽  
Composite Panel ◽  
Fem Method ◽  
Buckling Behavior ◽  
Post Buckling ◽  
The Stability ◽  
Composite Cylindrical Panel

The present work is devoted to the analysis of a buckling behavior of a cylindrical composite panel. The considered structure is subjected to the uniform axial compression. The wall of the panel consists of the 8 layers. In addition, in the geometrical center of the structure there is a square delamination located between the fourth and the fifth layer. The main goal is to determine the buckling and post - buckling behavior as well as the influence of the delamination on the stability of the structure. The nonlinear numerical analysis is carried out with aid of the FEM method. The experimental verification is also performed. The results obtained from numerical and experimental analysis show very similar behavior of the structure.

An experimental and numerical analysis for the post-buckling behavior of composite shear webs

2011 ◽  
Vol 93 (2) ◽  
pp. 465-473 ◽  
Author(s):  
Mariano A. Arbelo ◽  
Sérgio Frascino M. de Almeida ◽  
Maurício V. Donadon
Keyword(s):  
Numerical Analysis ◽  
Buckling Behavior ◽  
Post Buckling ◽  
Composite Shear

Analytical and Numerical Analyses of Delamination Buckling in Layer Beams

2006 ◽  
Vol 111 ◽  
pp. 75-78
Author(s):  
Madusudhanan R. Parlapalli ◽  
Dong Wei Shu ◽  
G.B. Chai
Keyword(s):  
Numerical Analysis ◽  
Analytical Model ◽  
Parametric Study ◽  
Slenderness Ratio ◽  
Numerical Analyses ◽  
Ansys Software ◽  
Buckling Mode ◽  
Buckling Behavior ◽  
Controlling Parameter ◽  
Delamination Buckling

In the present paper, new nondimensionalized parameters, namely, nondimensionalized axial and bending stiffnesses have been introduced to study analytically the buckling behavior of two-layer beams with separated delaminations. Numerical analysis has been carried out by using ANSYS software to validate the developed analytical model. Delaminations are modeled with gap elements in ANSYS. A detailed parametric study has been carried out and it is found that the buckling behavior strongly depends on these new nondimensionalized parameters. Another nondimensionalized parameter, effective-slenderness ratio is also introduced and it is found to be a controlling parameter of delamination buckling mode configurations.

Manufacturing Imperfection Sensitivity Analysis of Spherical Pressure Hull for Manned Submersible

2013 ◽  
Vol 47 (6) ◽  
pp. 64-72 ◽  
Author(s):  
Bhaskaran Pranesh ◽  
Dharmaraj Sathianarayanan ◽  
Sethuraman Ramesh ◽  
Gidugu Ananda Ramadass
Keyword(s):  
Numerical Analysis ◽  
Parametric Design ◽  
External Pressure ◽  
Imperfection Sensitivity ◽  
Element Analysis ◽  
Allowable Deviation ◽  
Buckling Behavior ◽  
Manufacturing Procedure ◽  
Manned Submersible ◽  
Spherical Pressure

AbstractAny pressure hull invariably has imperfections as a result of the manufacturing procedure. Imperfections in a spherical pressure hull are the basis for localized buckling and deformation behavior. Numerical analysis and analytical calculations are carried out to predict the buckling behavior and strength of a pressure hull made of titanium alloy (Ti-6Al-4V) for both perfect and imperfect pressure hulls. Finite element analysis is carried out for different imperfection angles to see the effect on strength and buckling. Results of numerical analysis show that there is considerable reduction in both buckling pressure and strength as a result of imperfections. Hence, allowable deviation due to imperfection for a spherical pressure hull has to be considered for thickness calculations.Abbreviations:P  external pressure (Design pressure)Dm  mean diameter of the pressure hullRm  mean radius of the pressure hullRi  imperfect radius of the pressure hullt  thickness of the pressure hullΔR  imperfect deviationδ  imperfection angleσ  hoop stressPy  pressure at yield strength of the materialPb  buckling pressureE  Young’s modulus of the materialμ  Poisson’s ratioMSW  meters of sea waterAPDL  ANSYS Parametric Design Language

Sign in / Sign up

Export Citation Format

Share Document