Standards for the stress analysis of thin-walled shell structures in cryogenic engineering

1983 ◽  
Vol 15 (1) ◽  
pp. 121-126 ◽  
Author(s):  
B. A. Kuranov ◽  
A. A. Lebedev ◽  
N. V. Novikov ◽  
V. A. Strizhalo
Keyword(s):  
Stress Analysis ◽  
Shell Structures ◽  
Cryogenic Engineering ◽  
Thin Walled

RESERVE OF ANALYTICAL SURFACES FOR ARCHITECTURE AND CONSTRUCTION

2021 ◽  
Vol 98 (6) ◽  
pp. 63-72
Author(s):  
GIL-OULBE MATHIEU ◽  
Keyword(s):  
Mechanical Engineering ◽  
Building Materials ◽  
Shell Structures ◽  
Housing Construction ◽  
Spatial Structures ◽  
Surfaces Of Revolution ◽  
Industrial Buildings ◽  
New Ideas ◽  
Wavy Surfaces ◽  
Thin Walled

After a period of relative calm in the construction and design of thin-walled large-span shells and network multilayer shell structures, which, according to the world's leading architects, began in the 1980 s, the time has come for the expanded use of spatial structures in the architecture of public and industrial buildings. Less commonly, shells are used in small-sized housing construction: ecological villages, noospheric and bionic architecture. The entire 20th century did not stop research on the development of analytical and numerical methods for analyzing shells for strength and stability, for the creation of new building materials. Geometers have created and studied more than 600 analytical surfaces that can be mistaken for the mid-surfaces of civil and mechanical engineering shells. As a result, by the beginning of the 21st century, architects and engineers had all the necessary tools to continue the traditions of the "golden age of shells". The analysis of problems with the use of new forms in parametric architecture, carried out in the article, showed that more than ten classes of surfaces from their classification have not yet found application in architecture and mechanical engineering. It is assumed that the number of applied classes of surfaces will not expand, and new ideas for the shaping of shells will be based on the use of already well-known surfaces, namely, surfaces of revolution, transfer, umbrella, minimal, ruled and wavy surfaces. Mainly, shell structures will be designed taking into account environmental, energy-saving requirements and transforming structures.

scholarly journals Study on the Composite Structure of Aluminum Foam-Filled Thin-Walled Metal Tube to Reduce the Charge Overload inside the Projectile during the Penetration Process

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Fudi Liang ◽  
Zengyou Liang ◽  
Dezhi Deng
Keyword(s):  
Reinforced Concrete ◽  
Stress Analysis ◽  
Composite Structure ◽  
High Speed ◽  
Aluminum Foam ◽  
Metal Tube ◽  
Penetration Process ◽  
Mathematical Expressions ◽  
Foam Filled ◽  
Thin Walled

When a projectile penetrates a target at high speed, the charge loaded inside the projectile usually bears a high overload, which will consequently severely affect its performance. In order to reduce the overload of the charge during the penetration process, the structure of the projectile was improved by adding two buffers at both ends of the charge. In this study, the mathematical expressions were first gained about the axial buffering force generated by the thin-walled metal tube, aluminum foam, and the composite structure of aluminum foam-filled thin-walled metal tube when they were impacted by the high-speed mass block through reasonable assumptions and stress analysis. During the experiment on the high-speed projectile penetrating reinforced concrete target, the acceleration curve of the charge and the projectile body were obtained. The results show that the maximum overload that the charge was subjected to during the launch and penetration process was significantly reduced, and the change in overload, which the charge was subjected to during the penetration process, was also less obvious.

Creep-Stress Analysis of Thin-Walled Structures

1960 ◽  
Vol 64 (599) ◽  
pp. 673-682 ◽  
Author(s):  
S. A. Patel ◽  
K. A. V. Pandalai ◽  
B. Venkatraman
Keyword(s):  
Stress Analysis ◽  
Elevated Temperatures ◽  
Early Stage ◽  
New Techniques ◽  
Creep Stress ◽  
Thin Walled Structures ◽  
Stage Of Development ◽  
Method Of Solution ◽  
Realistic View ◽  
Thin Walled

In the present era of supersonic and hypersonic flight, structural analysts are well aware of the new problems that arise from the exposure of aircraft and missile structures to elevated temperatures. The task of solving these problems is in its early stage of development. Since the problems are diversified in nature, a different method of solution has to be developed in each case. It is probable that in some cases radically new techniques may have to be devised. Until such time, the structural designer is forced to take a realistic view and use satisfactory extensions of existing methods of analysis.

Thin-walled shell structures made of textile-reinforced concrete

2015 ◽  
Vol 16 (1) ◽  
pp. 106-114 ◽  
Author(s):  
Alexander Scholzen ◽  
Rostislav Chudoba ◽  
Josef Hegger
Keyword(s):  
Reinforced Concrete ◽  
Shell Structures ◽  
Textile Reinforced Concrete ◽  
Thin Walled

Multidimensional Model for the Stress Analysis of Reinforced Shell Structures

AIAA Journal ◽  
2018 ◽  
Vol 56 (4) ◽  
pp. 1647-1661 ◽  
Author(s):  
Enrico Zappino ◽  
Erasmo Carrera
Keyword(s):  
Stress Analysis ◽  
Shell Structures ◽  
Multidimensional Model ◽  
Reinforced Shell

Elastic-Plastic Stress Analysis of Pressure Vessels

2012 ◽  
Author(s):  
Yang-chun Deng ◽  
Gang Chen
Keyword(s):  
Internal Pressure ◽  
Stress Analysis ◽  
Strain Hardening ◽  
Pressure Vessel ◽  
Plastic Instability ◽  
Pressure Vessels ◽  
Structural Deformation ◽  
Elastic Plastic ◽  
Thin Walled ◽  
Plastic Stress

To save material, the safety factor of pressure vessel design standards is gradually decreased from 5.0 to 2.4 in ASME Boiler and Pressure Vessel Codes. So the design methods of pressure vessel should be more rationalized. Considering effects of material strain hardening and non-linear structural deformation, the elastic-plastic stress analysis is the most suitable for pressure vessels design at present. This paper is based on elastic-plastic theory and considers material strain hardening and structural deformation effects. Elastic-plastic stress analyses of pressure vessels are summarized. Firstly, expressions of load and structural deformation relationship were introduced for thin-walled cylindrical and spherical vessels under internal pressure. Secondly, the plastic instability for thin-walled cylindrical and spherical vessels under internal pressure were analysed. Thirdly, to prevent pressure vessels from local failure, the ductile fracture strain of materials was discussed.

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