A New Way to Manufacture Ultra Light Metal Structures

2004 ◽  
Vol 28 (3) ◽  
pp. 296-303 ◽  
Keyword(s):  
Light Metal ◽  
Metal Structures

scholarly journals The work of the tent fence on the shearing strength in light metal structures

2020 ◽  
Vol 890 ◽  
pp. 012063
Author(s):  
Ildar Valeev ◽  
Gennady Shmelev ◽  
Lenar Khaidarov ◽  
Anatoliy Antonov
Keyword(s):  
Light Metal ◽  
Metal Structures ◽  
Shearing Strength

Features of Laser Welding Light Constructions from Cryogenic Austenitic Steel 316L

2019 ◽  
Vol 822 ◽  
pp. 512-519 ◽  
Author(s):  
M. Kuznetsov ◽  
Maksim Larin ◽  
Alexander Sorokin
Keyword(s):  
Laser Welding ◽  
Austenitic Steel ◽  
Welded Joint ◽  
Light Metal ◽  
Metal Structures ◽  
The Real ◽  
316L Steel ◽  
Real Objects

The publication describes the results of the research of the influence of laser welding mode parameters on geometry and quality of the formation of the welded joint of 316L steel with thickness of 1 mm. According to the results of research in the framework of pre-project works, in order to test the technology at the real objects, components of light metal structures were welded.

The Theory of Limit Design Applied to Magnesium Alloy and Aluminium Alloy Structures

1947 ◽  
Vol 51 (438) ◽  
pp. 534-571 ◽  
Author(s):  
Filadelfo Panlilio
Keyword(s):  
Magnesium Alloy ◽  
Aluminium Alloy ◽  
Structural Steel ◽  
Design Problem ◽  
Complete Solution ◽  
Design Procedure ◽  
Light Metal ◽  
Metal Structures ◽  
Traditional Design ◽  
Steel Construction

This paper is a study of the questions: (1) Are the simplified equations and design procedure in Limit Design that have been developed for application to structural steel construction, applicable without modification to light metal structures? (2) How do the properties of these metals which are different from those of steel affect the application of the theory? Do they offer any advantages? Any disadvantages? (3) What changes in traditional design procedure are warranted? What changes are imperative?No claim is made to a complete solution of the design problem, since each particular structure involves a thousand and one details. Only the broad fundamental philosophy is discussed here. The discussion and conclusions are supplemented with a report of a number of experiments on a few extrusions of some of the more important alloys of magnesium and of aluminium.

scholarly journals Experimental studies of the operation of a frameless building made of thin-gauge structural sections

2021 ◽  
Vol 31 (4) ◽  
pp. 110-119
Author(s):  
I. I. Vedyakov ◽  
D. V. Solovyev ◽  
A. V. Smagin
Keyword(s):  
Comparative Analysis ◽  
Construction Industry ◽  
Experimental Studies ◽  
Numerical Data ◽  
Light Metal ◽  
Operating Conditions ◽  
Shell Structures ◽  
Metal Structures ◽  
Promising Direction ◽  
Operational Scheme

Light metal structures (LMS) are widely spread in domestic construction industry. A promising direction for the development of LMS includes prefabricated shell structures made of thin-gauge structural sections. The scope and operating conditions of such structures are quite extensive. In this regard, the development of a competent engineering methodology for calculating buildings using thin-gauge structural sections is required. The present paper describes a method for a full-scale testing of a shell building fragment and provides the results of forces and deformations calculated using the experimental model. In addition, an approach to modeling and dimensioning of finite elements for the profiles under consideration is described. The comparative analysis of numerical data and experimental results is performed. The results of the study can be used both for developing recommendations and engineering methods for calculating similar shell buildings and for determining the actual operational scheme for units and elements of the considered structure.

scholarly journals Optimization of flat-oval pipes and perspectives of their application in core structures

2018 ◽  
Vol 251 ◽  
pp. 03015
Author(s):  
Alexander Marutyan ◽  
Tamazi Kobaliya ◽  
Evgeny Galdin
Keyword(s):  
Structural Material ◽  
Approximate Method ◽  
Cross Sections ◽  
Quantitative Estimate ◽  
Light Metal ◽  
Design Parameters ◽  
Technical Solution ◽  
Optimal Parameters ◽  
Metal Structures ◽  
Rod Structures

The calculation of optimal parameters of flat-oval pipes is given by an approximate method, the correctness of which is confirmed by testing using standardized profiles. A new layout of gratings made of flat-oval shaped pipes is presented, developed for truss systems based on steel rod structures of coatings with replacement of bar-shaped bent elements with tubular ones. The caseless junctions of belts and lattices with direct joining of rod elements to each other without alignment are developed, as well as with structural eccentricities limited to 0.25 of the height of the waist elements, which allows not to take them into account in calculations and provides an increase in the degree of unification of the nodes of the upper and lower belts of carrier’s constructions. The prospects of using a new technical solution in light metal structures of buildings and structures are shown. The area of its rational application is outlined, where by means of variant design of typical, known and new solutions, a quantitative estimate of the reduction in the consumption of structural material is given. The whole diagram of changes in the design parameters of flat-oval pipes is shown in the transformation of their cross-sections from vertical configurations to horizontal ones, including the transition through the outline of a circular shape.

STOCHASTIC CALCULATION OF LIFETIME PREDICTION FOR COMPONENTS IN METAL STRUCTURES DUE TO THE GROWTH OF MICRODEFECTS

2020 ◽  
Vol 4 (97) ◽  
pp. 69-76
Author(s):  
IGOR N. SILVERSTOV
Keyword(s):  
Fatigue Strength ◽  
Fracture Mechanics ◽  
Stochastic Approach ◽  
Fatigue Curve ◽  
Probability Of Failure ◽  
Lifetime Prediction ◽  
Statistical Distributions ◽  
Metal Structures

A stochastic approach has been developed to evaluate fatigue strength using elements of the fracture mechanics. The article presents a method for determining the initial parameters of statistical distributions. It also considers the method for constructing a fatigue curve for a component of any size and configuration with any given probability of failure.

RECLAMATION AND CULVERT CROSSINGS MADE OF CORRUGATED PIPES ON SPAWNING STREAMS

2020 ◽  
pp. 68-77
Author(s):  
O.N. CHERNYKH ◽  
◽  
A.V. RBURLACHENKO
Keyword(s):  
Single Point ◽  
Experimental Studies ◽  
Fish Passage ◽  
Future Research ◽  
Fish Stocks ◽  
Metal Structures ◽  
Natural Reproduction ◽  
Spiral Shape ◽  
Corrugated Metal ◽  
Spawning Streams

Recommendations are presented for solving issues that arise in the design and operation of tubular transport crossings of corrugated metal structures through spawning streams while ensuring the safety and natural reproduction of fish stocks. There are discussed the results of experimental studies of culverts made of metal corrugated pipes with a normal and spiral shape of corrugation the bottom of which is buried and filled with suitable granular material to the level of the natural channel of a small watercourse. It is established that when 10% of the area of the corrugated pipe is occupied by stone filling, its throughput is reduced by about 10-12%. Based on the review of the existing literature and the results of laboratory experiments, data is provided to estimate the values of the roughness coefficients of the composite cross-section of a single-point junction and directions for future research on culvert reclamation are outlined. Studying of the structure of the velocity distribution in culverts can lead to the improved conditions for fish passage without installing special structural elements in the transit path of the fish passage structure.

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