Stability of the axisymmetrical equilibrium shape of an orthotropic spherical shell in large bending

1995 ◽  
Vol 31 (6) ◽  
pp. 477-482 ◽  
Author(s):  
A. Yu. Evkin ◽  
A. A. Dubichev
Keyword(s):  
Spherical Shell ◽  
Equilibrium Shape ◽  
Orthotropic Spherical Shell

Imperfection sensitivity of an orthotropic spherical shell under external pressure

2002 ◽  
Vol 37 (4-5) ◽  
pp. 669-686 ◽  
Author(s):  
H. Öry ◽  
H.-G. Reimerdes ◽  
T. Schmid ◽  
A. Rittweger ◽  
J. Gómez Garcı́a
Keyword(s):  
Spherical Shell ◽  
External Pressure ◽  
Imperfection Sensitivity ◽  
Orthotropic Spherical Shell

Stability of an imperfectly shaped orthotropic spherical shell

1996 ◽  
Vol 32 (3) ◽  
pp. 196-200
Author(s):  
V. I. Étokov ◽  
V. I. Étokova
Keyword(s):  
Spherical Shell ◽  
Orthotropic Spherical Shell

Elastoplastic Deformation in an Orthotropic Spherical Shell Subjected to a Temperature Gradient

2019 ◽  
Vol 25 (1) ◽  
pp. 26-34 ◽  
Author(s):  
Pankaj Thakur ◽  
Monika Sethi
Keyword(s):  
Temperature Gradient ◽  
Spherical Shell ◽  
Principal Stress ◽  
Elastoplastic Deformation ◽  
Transition Theory ◽  
Nonlinear Part ◽  
Orthotropic Spherical Shell ◽  
Transition Points ◽  
Semi Empirical ◽  
Yield Conditions

The objective of this research paper is to present the study of elastoplastic deformation in an orthotropic spherical shell subjected to a temperature gradient by using Seth’s transition theory. Seth’s transition theory includes classical macroscopic solving problems in plasticity, creep and relaxation and assumes semi-empirical yield conditions. The nonlinear transition regions through which yielding occurs are neglected. Apparently, transition theory is used to solve problems in a general way, employing the concept of generalized strain measure and asymptotic solution at the transition points of differential equations. The problems of elastoplastic and creep transitions are solved through principal stress and principal stress difference and in consideration of the nonlinear part of the transition.

Design of an orthotropic spherical shell with two holes

1991 ◽  
Vol 27 (12) ◽  
pp. 1177-1182
Author(s):  
N. Kh. Noraliev ◽  
K. I. Shnerenko
Keyword(s):  
Spherical Shell ◽  
Orthotropic Spherical Shell
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