Study of the elastic-plastic state of cyclically loaded shells of revolution

1976 ◽  
Vol 8 (4) ◽  
pp. 483-486
Author(s):  
I. S. Chernyshenko ◽  
G. K. Sharshukov
Keyword(s):  
Plastic State ◽  
Shells Of Revolution ◽  
Elastic Plastic

Elastic-plastic state of shells of revolution with a rigid circular inclusion

1980 ◽  
Vol 16 (2) ◽  
pp. 130-134
Author(s):  
I. S. Chernyshenko
Keyword(s):  
Circular Inclusion ◽  
Plastic State ◽  
Shells Of Revolution ◽  
Elastic Plastic ◽  
Rigid Circular Inclusion

Elasto-plastic state of curve beam system subjected to complex loading

1996 ◽  
Vol 18 (4) ◽  
pp. 14-22
Author(s):  
Vu Khac Bay
Keyword(s):  
Cylindrical Shell ◽  
Solution Method ◽  
Complex Loading ◽  
Numerical Results ◽  
Elastic Solution ◽  
Plastic State ◽  
Curve Beam ◽  
Elastic State ◽  
Elastic Plastic ◽  
Beam System

Investigation of the elastic state of curve beam system had been considered in [3]. In this paper the elastic-plastic state of curve beam system in the form of cylindrical shell is analyzed by the elastic solution method. Numerical results of the problem and conclusion are given.

scholarly journals Thermo elastic-plastic transition in a thin rotating disc with inclusion

2007 ◽  
Vol 11 (1) ◽  
pp. 103-118 ◽  
Author(s):  
Kumar Gupta ◽  
P Pankaj
Keyword(s):  
Thermal Effect ◽  
Internal Surface ◽  
Angular Speed ◽  
Incompressible Material ◽  
Plastic State ◽  
Percentage Increase ◽  
Compressible Material ◽  
Rotating Disc ◽  
Elastic Plastic ◽  
Different Temperatures

Stresses for the elastic-plastic transition and fully plastic state have been derived for a thin rotating disc with shaft at different temperatures and results have been discussed and depicted graphically. It has been observed that the rotating disc with inclusion and made of compressible material requires lesser angular speed to yield at the internal surface and higher percentage increase in angular speed to become fully plastic as compare to disc made of incompressible material. With the introduction of thermal effect the rotating disc with inclusion required lesser angular speed to yield at the internal surface. Rotating disc made of compressible material with inclusion requires higher percentage increase in angular speed to become fully-plastic as compare to disc made of incompressible material. Thermal effect also increases the values of radial and circumferential stresses at the internal surface for fully-plastic state. .

Elastic ? Plastic state of a square wall beam

1973 ◽  
Vol 9 (7) ◽  
pp. 741-744
Author(s):  
V. A. Trubii
Keyword(s):  
Plastic State ◽  
Elastic Plastic

Analysis of Elastic-Plastic Buckling and Imperfection — Sensitivity of Shells of Revolution

1982 ◽  
pp. 137-174 ◽  
Author(s):  
W. Wunderlich ◽  
H. J. Rensch ◽  
H. Obrecht
Keyword(s):  
Shells Of Revolution ◽  
Imperfection Sensitivity ◽  
Plastic Buckling ◽  
Elastic Plastic

Analysis of Elastic-Plastic Shells of Revolution

1970 ◽  
Vol 96 (3) ◽  
pp. 327-340
Author(s):  
Mahmoud Khojasteh-Bakht ◽  
Egor P. Popov
Keyword(s):  
Shells Of Revolution ◽  
Elastic Plastic

A stiffness method for elastic-plastic shells of revolution

1966 ◽  
Vol 1 (4) ◽  
pp. 339-350 ◽  
Author(s):  
P V Marcal ◽  
W R Pilgrim
Keyword(s):  
Pressure Vessel ◽  
Computer Programme ◽  
Shells Of Revolution ◽  
Step Method ◽  
Axisymmetric Loading ◽  
Elastic Plastic ◽  
Stiffness Method ◽  
Experimental Values

A stiffness method is proposed for the analysis of elastic-plastic shells of revolution with axisymmetric loading. A step-by-step method of integration is used in a computer programme developed to implement the method. Calculations were performed for a toroidal bellows and a torispherical pressure vessel head; the results agree with experimental values.

Elastic-plastic state of torispherical heads

1986 ◽  
Vol 23 (11) ◽  
pp. 2103-2120 ◽  
Author(s):  
L. Varga ◽  
P. Gara ◽  
Gy. Kollar
Keyword(s):  
Plastic State ◽  
Elastic Plastic

scholarly journals A New Unified Solution for Circular Tunnels Based on Generalized SMP Criterion considering the Strain Softening and Dilatancy

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Qifeng Guo ◽  
Jiliang Pan ◽  
Xinghui Wu ◽  
Xun Xi ◽  
Meifeng Cai
Keyword(s):  
Internal Friction ◽  
Plastic Zone ◽  
Strain Softening ◽  
Friction Angle ◽  
Surrounding Rock ◽  
Internal Friction Angle ◽  
Plastic State ◽  
Circular Tunnel ◽  
Dilatancy Angle ◽  
Elastic Plastic

According to the strain-softening characteristics of rock mass, an ideal elastic strain-softening model is developed, and the surrounding rock of tunnels is subdivided into the plastic broken zone, plastic strain-softening zone, and elastic zone. Based on the generalized spatially mobilized plane criterion, an elastic-plastic analytical solution of a circular tunnel is derived. The effects of intermediate principal stress, strain softening, and dilatancy are considered in the unified solution. The stress, displacement, and plastic zone radius of surrounding rock based on the SMP criterion are compared with those based on the Mohr–Coulomb criterion. Furthermore, the effects of parameters such as the softening modulus, dilatancy angle, and internal friction angle on the deformation and stress of tunnels are discussed. It has been found that the larger the dilatancy angle is, the larger the plastic zone displacement and the radius of the broken zone are. The larger the internal friction angle, the smaller the sizes of the plastic zone, the strain-softening zone, and the broken zone are. The deformation of surrounding rock in the broken zone is more sensitive to the internal friction angle than that in the strain-softening zone. The unified solution based on the SMP criterion provides a well understanding for the elastic-plastic state of tunnels, which can be the guidance for tunnel excavations and support designs.

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