scholarly journals Local Buckling Coefficient Calculation Method of Thin Plates with Round Holes

ce/papers ◽  
2019 ◽  
Vol 3 (3-4) ◽  
pp. 841-846
Author(s):  
Šarūnas Kelpša ◽  
Simo Peltonen
Keyword(s):  
Calculation Method ◽  
Local Buckling ◽  
Thin Plates ◽  
Buckling Coefficient

Local buckling theoretical calculation method of the FRP foam sandwich cylinder under axial compression

2020 ◽  
Vol 246 ◽  
pp. 112371 ◽  
Author(s):  
Darong Pan ◽  
Li Chen ◽  
Qilin Zhao ◽  
Liang Chen ◽  
Min Lin ◽  
...  
Keyword(s):  
Theoretical Calculation ◽  
Axial Compression ◽  
Calculation Method ◽  
Local Buckling

scholarly journals Local and post local buckling of stepped and perforated thin plates

2005 ◽  
Vol 29 (7) ◽  
pp. 633-652 ◽  
Author(s):  
M. Azhari ◽  
A.R. Shahidi ◽  
M.M. Saadatpour
Keyword(s):  
Local Buckling ◽  
Thin Plates

Buckling of longitudinally stiffened plates in bending and compression

1989 ◽  
Vol 16 (5) ◽  
pp. 607-614 ◽  
Author(s):  
Mark A. Bradford
Keyword(s):  
Limit State ◽  
Local Buckling ◽  
Test Results ◽  
Pure Bending ◽  
Uniform Compression ◽  
Longitudinal Stiffener ◽  
Optimum Position ◽  
Buckling Coefficient ◽  
The Relationship ◽  
Web Plates

The nonlinear stiffness equations that predict local and post-local buckling of plates and plate assemblies are given. These equations are validated by accurate predictions of independent test results. The elastic local buckling of longitudinally stiffened web plates in combined bending and compression is considered. Graphs which may be used to predict the optimum position of a stiffener are presented. The relationship between the area and second moment of area of a stiffener of finite dimensions that optimizes the local buckling coefficient is given for various eccentricities of end load. The post-local buckling of a longitudinally stiffened plate in uniform compression and pure bending is also considered. It is shown that the provision of a longitudinal stiffener, of proportions to enforce a node at the plate–stiffener junction, enhances significantly the postbuckling response of the plate with regard to the serviceability limit state, particularly for the case of pure bending. Key words: bending, compression, finite strips, local buckling, plates, postbuckling, stiffeners, webs.

A simple method for measuring local buckling of thin plates

1988 ◽  
Vol 28 (1) ◽  
pp. 20-23 ◽  
Author(s):  
Z. T. Sang ◽  
K. C. Chang ◽  
G. C. Lee
Keyword(s):  
Local Buckling ◽  
Thin Plates ◽  
Simple Method

Shear Resistance of Trapezoidal Corrugated Web in Local Buckling

2014 ◽  
Vol 554 ◽  
pp. 421-425 ◽  
Author(s):  
Fathoni Usman
Keyword(s):  
Finite Element Method ◽  
Slenderness Ratio ◽  
Local Buckling ◽  
Shear Resistance ◽  
Experimental Results ◽  
The Finite Element Method ◽  
Corrugated Web ◽  
Shear Buckling ◽  
Buckling Coefficient ◽  
Good Agreement

This paper presents analytical studies using Eigenvalue buckling analysis in the Finite Element Method to determine shear buckling and subsequently determine shear resistance of thin plated member with trapezoidal corrugated web. The result is compared with experimental results. It is found that the proposed equations give good agreement to the experimental results. However, the buckling coefficient k is still not generate a good shear stress based on its slenderness ratio hw/tw.

scholarly journals Elastic Web Buckling Stress and Ultimate Strength of H-Section Beams Dominated by Web Buckling

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Jiaxing Ma ◽  
Tao Wang ◽  
Yinhui Wang ◽  
Kikuo Ikarashi
Keyword(s):  
Ultimate Strength ◽  
Shear Force ◽  
Slenderness Ratio ◽  
Local Buckling ◽  
Elastic Buckling ◽  
Buckling Stress ◽  
Web Buckling ◽  
Buckling Coefficient ◽  
The Web ◽  
Good Agreement

Numerical analyses and theoretic analyses are presented to study the elastic buckling of H-section beam web under combined bending and shear force. Results show that the buckling stress of a single web with clamped edges gives a good agreement with the buckling stress of an H-section beam web when the local buckling of the beam is dominated by the web buckling. Based on theoretic analyses, a parametric study is conducted to simplify the calculation of buckling coefficients. The parameters involved are clarified first, and the improved equations for the buckling coefficient and buckling stress are suggested. By applying the proposed method, the web buckling slenderness ratio is defined. It is verified that the web buckling slenderness ratio has a strong correlation with the normalized ultimate strength of H-section beams when the buckling of the beams is dominated by web buckling. Finally, a design equation is proposed for the ultimate strength of H-section beams.

Effective width method to account for the local buckling of steel thin plates at elevated temperatures

2014 ◽  
Vol 84 ◽  
pp. 134-149 ◽  
Author(s):  
Carlos Couto ◽  
Paulo Vila Real ◽  
Nuno Lopes ◽  
Bin Zhao
Keyword(s):  
Elevated Temperatures ◽  
Local Buckling ◽  
Thin Plates ◽  
Effective Width

Section Idealization of Corrugated Thermoplastic Pipe in AASHTO Design

2018 ◽  
Vol 2672 (41) ◽  
pp. 1-10
Author(s):  
Brent J. Bass ◽  
Jesse L. Beaver
Keyword(s):  
Cross Sections ◽  
Calculation Method ◽  
Design Method ◽  
Local Buckling ◽  
Relevant Information ◽  
Effective Area ◽  
Constant Thickness ◽  
Flat Plates ◽  
Cold Formed Steel ◽  
Aashto Lrfd

The AASHTO Load and Resistance Factor Bridge Design Specifications (AASHTO LRFD) thermoplastic pipe design method requires corrugated pipe local buckling resistance to be determined based on corrugation effective area. The effective area may be determined through calculations or physical tests on sections of pipe. When determined through calculations, effective area is based on individual corrugation element (e.g., crest, valley, web) slenderness following methods published by the American Iron and Steel Institute (AISI) for cold-formed steel design. Cold-formed steel members are rolled from constant-thickness steel sheet and have cross-sections divided into elements by distinct corners. In contrast, corrugated thermoplastic pipe cross-sections have variable geometries with non-uniform thickness, elements without distinct corners defining their ends, and elements that may be rounded or have other beneficial features such as intermediate ribs or stiffeners. Applying the calculation method requires idealization of corrugation elements into flat plates of representative clear width and thickness. As corrugation geometries have evolved with the increased use of thermoplastic pipe, there has not been a thorough review of appropriate methods of idealization to ensure current geometries meet the intent of the design method. This paper reviews the existing AASHTO LRFD effective area calculation method, information from background documents upon which the AASHTO LRFD method was based (NCHRP reports 438 and 631), and relevant information from the AISI Specification for the Design of Cold-Formed Steel Structural Members; identifies important concepts for cross-section idealization; and provides recommendations for idealization of corrugation members with curves and intermediate stiffeners.

scholarly journals Local Buckling Analysis of T-Section Webs with Closed-Form Solutions

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Cheng Liang ◽  
Yabo He ◽  
Sumei Liu
Keyword(s):  
Closed Form ◽  
Dimensionless Parameter ◽  
Local Buckling ◽  
Data Fitting ◽  
Numerical Approach ◽  
Constraint Condition ◽  
Buckling Loads ◽  
Closed Form Solutions ◽  
Half Wavelength ◽  
Buckling Coefficient

This paper reports on approaches to estimate the critical buckling loads of thin-walled T-sections with closed-form solutions. We first develop a model using energy conservation approach under the assumption that there is no correlation between the restraint coefficient and buckling half-wavelength. Secondly, we propose a numerical approach to estimate the critical buckling conditions under the more realistic torsional stiffener constraint condition. A dimensionless parameter correlated with constraint conditions is introduced through finite element (FE) analysis and data fitting technique in the numerical approach. The critical buckling coefficient and loads can be expressed as explicit functions of the dimensionless parameter. The proposed numerical approach demonstrates higher accuracy than the approach under noncorrelation assumption. Due to the explicit expression of critical buckling loads, the numerical approach presented here can be easily used in the design, analysis, and precision manufacture of T-section webs.

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