共查询到20条相似文献,搜索用时 15 毫秒
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L. M. Kurshin V. T. Shcherbakov 《Journal of Applied Mechanics and Technical Physics》1974,15(5):672-678
The critical strain of a cylindrical shell subjected to combined axial compression and internal pressure is computed under creep conditions. A method is proposed to determine values of the initial deflections by means of elastic shell test data for a creep analysis of shells. Data of an experimental investigation of the creep stability of shells are presented, which are compared with the results of the computation.Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 5, pp. 109–116, September–October, 1974. 相似文献
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I-Shih Liu 《Continuum Mechanics and Thermodynamics》1995,7(2):249-258
The pressure-radius relation of spherical rubber balloons has been derived and its stability behavior investigated before. In this work, we show that similar results remain valid for thick spherical shells of Mooney-Rivlin materials. In addition, we show that eversion of a spherical shell is possible for any incompressible isotropic materials if the shell is not too thick. 相似文献
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Elastic buckling under aial compression of finite, oval cylindrical shells with clamped boundaries was investigated experimentally. The determination of the buckling strength was made on a series of oval shells made of Mylar A. The test results indicated that the discrepancy between theoretical and experimental initial buckling loads for the ovals is similar to that of the circular cylindrical shells. However, in contrast to the circular case, a collapse load significantly exceeding the initial buckling load is observed in the case of ovals with moderate-to-large eccentricity. 相似文献
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An analysis of the creep effects on the buckling of concreteshallow shells is presented in this paper.Based on the non-linear theory of thin elastic shells.it is found that forthose of the elliptical paraboloidal type.the upper cri-tical load of the load-deflection curve will decrease whilethe lower limit Will increase with time.As to the problemof local buckling of the shell.the critical load is de-pendent only upon the modulus of elasticity at the instantit occurs. 相似文献
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V. M. Trach 《International Applied Mechanics》2008,44(3):331-344
An approach to solving the buckling problem for shells made of a composite material with one plane of elastic symmetry is
presented. The approach employs complex Fourier series. The prebuckling stress-strain state is assumed to be geometrically
nonlinear. The stability of a cylindrical shell under axial compression and uniform side pressure is analyzed using the Runge-Kutta
method with discrete orthogonalization. The numerical results are compared with analytical solutions
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Translated from Prikladnaya Mekhanika, Vol. 44, No. 3, pp. 109–124, March 2008. 相似文献
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Mahmood Jabareen Izhak Sheinman 《International Journal of Solids and Structures》2009,46(10):2111-2125
A general procedure is developed for stability of stiffened conical shells. It is used for studying the sensitivity behavior with respect to the stiffener configurations. The effect of the pre-buckling nonlinearity on the bifurcation point, as well as the limit-point load level, is examined. The unique algorithm presented by the authors is an extended version of an earlier one, adapted for determination of the limit-point load level of imperfect conical shells. The eigenvalue problem is iteratively solved with respect to the nonlinear equilibrium state up to the bifurcation point or to the limit-point load level.A general symbolic code (using MAPLE) was programmed to create the differential operators based on Donnell’s type shell theory. Then the code uses the Galerkin procedure, the Newton–Raphson procedure, and a finite difference scheme for automatic development of an efficient FORTRAN code which is used for the parametric study. 相似文献