A closed form formula to predict the ultimate capacity of pitted mild steel plate under biaxial compression

2012 ◽  
Vol 59 ◽  
pp. 27-34 ◽  
Author(s):  
Xiaoli Jiang ◽  
C. Guedes Soares
Keyword(s):  
Mild Steel ◽  
Closed Form ◽  
Steel Plate ◽  
Biaxial Compression ◽  
Ultimate Capacity ◽  
Closed Form Formula

Ultimate Capacity Behavior of Pitted Mild Steel Plates Under Biaxial Compression

2011 ◽  
Author(s):  
Xiaoli Jiang ◽  
C. Guedes Soares
Keyword(s):  
Mild Steel ◽  
Biaxial Loading ◽  
Fem Analysis ◽  
Steel Plates ◽  
Dominant Factor ◽  
Biaxial Compression ◽  
Ultimate Capacity ◽  
Thickness Loss ◽  
Loading Ratio ◽  
Corrosion Pits

The aim of the present paper is to investigate the effects of corrosion pits on the ultimate capacity of rectangular mild steel plates under biaxial compression. A series of non-linear FEM analysis on plates with partial depth pits are carried out, changing geometrical attributes of both pits and plates, i.e., the radius, depth, location and distribution of the pits and the slenderness of the plates. Possible interaction between transverse and longitudinal axial compression is studied applying different level of loading ratio and considering the effects of partial depth pitting corrosion. It is shown that biaxial loading ratio is a dominant factor affecting the behavior of pitted plates besides pits intensity and thickness loss at pits. When longitudinal compression is dominant load with loading ratio lower than 1, the interaction relationship curves for different DOP levels tend to be parallel with each other and the distance between every two parallel curves seems to be dependent mainly on the deviation of their DOP values and thickness loss at pits. Moreover, pits distribution along long and shirt edges could also affect the ultimate strength behavior of plates. The work done in the paper illustrates that the ultimate capacity of pitted plate could be derived from intact plate by introducing important influential parameters like DOP, thickness loss and possible pits distribution.

scholarly journals ON THE REPRESENTATION OF THE NESTED LOGIT MODEL

2021 ◽  
pp. 1-11
Author(s):  
Alfred Galichon
Keyword(s):  
Closed Form ◽  
Logit Model ◽  
Random Variables ◽  
Nested Logit ◽  
Random Utility ◽  
Nested Logit Model ◽  
Utility Representation ◽  
Phd Thesis ◽  
Closed Form Formula

In this paper, we give a two-line proof of a long-standing conjecture of Ben-Akiva in his 1973 PhD thesis regarding the random utility representation of the nested logit model, thus providing a renewed and straightforward textbook treatment of that model. As an application, we provide a closed-form formula for the correlation between two Fréchet random variables coupled by a Gumbel copula.

Numerical and analytical study of ultimate capacity of steel plate shear walls with partial plate-column connection (SPSW-PC)

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 3066-3080
Author(s):  
Mojtaba Gorji Azandariani ◽  
Ali Mohammad Rousta ◽  
Masoud Mohammadi ◽  
Maria Rashidi ◽  
Hamid Abdolmaleki
Keyword(s):  
Analytical Study ◽  
Steel Plate ◽  
Shear Walls ◽  
Ultimate Capacity ◽  
Steel Plate Shear Walls ◽  
Plate Column

The Influence of Leachate Water on Corrosion Rate of Mild Steel Plate

2021 ◽  
Vol 2 (2) ◽  
pp. 137
Author(s):  
Abdul Ghofur ◽  
Dhonie Adetya Rachman ◽  
Muhammad Mochtar Lutfi ◽  
Fathur Rahman
Keyword(s):  
Corrosion Rate ◽  
Mild Steel ◽  
Direct Contact ◽  
Steel Plate ◽  
Ambient Air ◽  
Water Pipe ◽  
Contact Duration ◽  
First Case ◽  
Living Organisms ◽  
Leachate Water

<p class="02abstracttext">Leachate water from final waste landfill (Tempat Pembuangan Akhir, TPA) contains harmful substances for the environment and living organisms. Furthermore, the leachate water can deteriorate equipment buried near TPA, e.g. buried water pipe. This work investigated the corrosion rate of mild steel SPCC SD after immersion in leachate water of TPA Gunung Kupang and Cahaya Kencana located in South Kalimantan. The steel plate immersion into leachate water was worked out in 3 different cases. The first case was 2 weeks immersion in leachate water followed by 1 week contact with ambient air. In the second case, steel plate was immersed in leachate water for 1 week and then 2 weeks in direct contact with ambient air. The last one was steel plate immersion in leachate water for 3 weeks without any direct contact with ambient air. The investigation shows that longer contact duration between wet steel surface, after immersion in leachate water, with ambient air increases the corrosion rate. The investigation shows also that the corrosion rate due to leachate water from Gunung Kupang landfill is higher than that of Cahaya Kencana landfill. Corrosion rate for TPA Gunung Kupang case varies from 0.441 to 0.718 mmpy. Meanwhile, corrosion rate for TPA Cahaya Kencana varies from 0.131 to 0.495 mmpy. This is due to lower pH of leachate water from TPA Mount Kupang.</p>

Comments on Vaughan: “The Tearing Strength of Mild Steel Plate”

1982 ◽  
Vol 26 (01) ◽  
pp. 50-52
Author(s):  
G. Woisin
Keyword(s):  
Mild Steel ◽  
Steel Plate ◽  
Simple Metal ◽  
Metal Plates ◽  
Tearing Strength

The title paper [1] 2 has been of great interest in view of similar tests, with simple metal plates, conducted in 1966 by the author's company [2, 8]. We offer the following comments on Mr. Vaughan's paper.

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