scholarly journals A STUDY ON THE EFFECTIVE WIDTH OF PLATE ELEMENTS IN THE METAL MEMBERS

2012 ◽  
Vol 77 (673) ◽  
pp. 437-442 ◽  
Author(s):  
Mamoru KIMURA
1975 ◽  
Vol 19 (01) ◽  
pp. 1-17 ◽  
Author(s):  
Douglas Faulkner

The review is divided into three main parts. The first is very brief and covers shear lag effects associated with stiffener plate bending. Part 2 concerns the behavior of unstiffened long plate elements (a ≥ b) in compression, which is referred to as effective ‘width’ effects. The concepts considered are maximum plate strength and how this is affected by initial distortion, normal pressure, and boundary conditions; stress distribution in plate elements before failure; and the "reduced effective width" concept for defining plate element stiffness, as required for use in stiffened-plate collapse theories. Final appraisal leads to recommendations based upon the equation advanced ten years ago for mean expected stress-free plate strength: σm/σο = (2/β) — (1/β2). It is used by the British Navy and has been recommended in Europe for box-girder bridge design. Part 3 concerns welding stress effects, and a critical strain theory is advanced for describing welded plate behavior in compression. The review has of course assessed appropriate test data, including a reappraisal from three full-scale destroyer tests. Some emphasis has been placed upon the statistical characteristics of the data, in order that this may help establish structural strength distributions for probabilistic approaches to ductile structural reliability. The paper ends with a brief historical review drawn from aeronautical, civil engineering and naval architectural sources, and a listing of the more important effective width formulas.


2013 ◽  
Vol 12 (11) ◽  
pp. 2249-2260 ◽  
Author(s):  
Kyoung Jae Lim ◽  
Jongpil Moon ◽  
Younghun Jung ◽  
Taesoo Lee ◽  
Tai-Cheol Kim ◽  
...  

1998 ◽  
Vol 124 (6) ◽  
pp. 712-719 ◽  
Author(s):  
L. A. Moen ◽  
M. Langseth ◽  
O. S. Hopperstad

2014 ◽  
Vol 969 ◽  
pp. 97-100 ◽  
Author(s):  
Eva Kormaníková

The paper deals with numerical modeling of delamination of laminate plate consists of unidirectional fiber reinforced layers. The methodology adopts the first-order shear laminate plate theory and fracture and contact mechanics. There are described sublaminate modeling and delamination modeling by the help of finite element analysis. With the interface modeling there is calculated the energy release rate along the lamination front. Numerical results are given for mixed mode delamination problems by implementing the method in a 2D finite analysis, which utilizes shear deformable plate elements and interface elements. Numerical example is done by the commercial ANSYS code.


1984 ◽  
Vol 11 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Robert Loov

Load tests were carried out on 36 stub column samples of cold-formed steel studs having 38.1 mm wide × 44.5 mm long holes punched through their webs, steel thicknesses of 1.21–2.01 mm, and overall section depths of 63–204 mm. Based on these tests a best-fit equation for the effective width of the unstiffened portion of the web beside the holes has been developed. Suggested design equations have been proposed. The test results support the present equation for the average yield stress [Formula: see text] in Canadian Standards Association Standard S136-1974 but the present code equations for unstiffened plates are unduly conservative when applied to the design of the web adjacent to openings of the size considered.


2011 ◽  
Vol 201-203 ◽  
pp. 2900-2903 ◽  
Author(s):  
Chui Huon Tina Ting ◽  
Hieng Ho Lau

Built-up sections are used to resist load induced in a structure when a single section is not sufficient to carry the design load for example roof trusses. In current North American Specification, the provision has been substantially taken from research in hot-rolled built-up members connected with bolts or welds [1]. The aim of this paper is to investigate on built-up back-to-back channels stub columns experimentally and theoretically using Effective Width Method and Direct Strength Method. Compression test was performed on 5 lipped channel and 5 back-to-back channels stub columns fabricated from cold-formed steel sheets of 1.2mm thicknesses. The test results indicated that local buckling is the dominant failure modes of stub columns. Therefore, Effective Width Method predicts the capacity of stub columns compared to Direct Strength Method. When compared to the average test results, results based on EWM are 5% higher while results based on DSM are 12% higher for stub column.


1969 ◽  
Vol 95 (10) ◽  
pp. 2183-2204
Author(s):  
George Abdel-Sayed
Keyword(s):  

1970 ◽  
Vol 96 (6) ◽  
pp. 1250-1254
Author(s):  
A. C. Walker ◽  
R. G. Dawson
Keyword(s):  

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