Stability of cylindrical shells made of a damageable physically nonlinear material

В работе рассматриваются многослойные бетонные стержни постоянного поперечного сечения. Закон деформирования каждого слоя стержня принят в виде аппроксимации полиномом третьего порядка. Предполагается, что на защемленный стержень действуют квазистатические продольные и поперечные нагрузки и сила тяжести. Рассматриваемые задачи решаются методом Бубнова-Галеркина. The paper considers multilayer concrete rods of constant cross-section. The deformation law for each layer of the bar is adopted as an approximation by a third-order polynomial. It is assumed that quasi-static longitudinal and transverse loads and gravity act on the restrained rod. The problems under consideration are solved by the Bubnov-Galerkin method.

Download Full-text

Stability of plates made of a damageable physically nonlinear material

International Applied Mechanics ◽

10.1007/s10778-006-0173-1 ◽

2006 ◽

Vol 42 (9) ◽

pp. 1029-1035 ◽

Cited By ~ 3

Author(s):

L. P. Khoroshun ◽

D. V. Babich ◽

E. N. Shikula

Keyword(s):

Nonlinear Material ◽

Physically Nonlinear Material

Download Full-text

Application of the experimental method for investigating elastoplastic bending of shallow cylindrical shells of nonlinear material

Strength of Materials ◽

10.1007/bf01523962 ◽

1986 ◽

Vol 18 (6) ◽

pp. 795-798

Author(s):

V. V. Zhitkov ◽

R. I. Nikulina

Keyword(s):

Experimental Method ◽

Cylindrical Shells ◽

Nonlinear Material ◽

Elastoplastic Bending

Download Full-text

About Dynamics of Muffs from Physically Nonlinear Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.702.291 ◽

2013 ◽

Vol 702 ◽

pp. 291-296

Author(s):

Lelya Khajiyeva ◽

Almatbek Kydyrbekuly

Keyword(s):

Experimental Data ◽

Torsional Oscillation ◽

Physical Nature ◽

Nonlinear Material ◽

Dynamic Processes ◽

Nonlinear Characteristics ◽

Nonlinear Properties ◽

Physically Nonlinear Material ◽

Rotating Shafts ◽

Nonlinear Dynamic Processes

The paper is devoted to simulation of nonlinear dynamic processes in mechanical systems with nonlinear characteristics of the physical nature. As an example torsional oscillation of rubber-cord muff, which connects rotating shafts of a drive of machines, is investigated. Influence of nonlinear properties of a muff on amplitude-frequency characteristics of a kinematic circuit is established. The research results are in accord with experimental data of other works.

Download Full-text

Limit Point Buckling Loads of Axially Compressed, Circular Cylindrical Shells—The Effect of Nonlinear Material Behavior

Journal of Applied Mechanics ◽

10.1115/1.3424560 ◽

1979 ◽

Vol 46 (2) ◽

pp. 386-392 ◽

Cited By ~ 3

Author(s):

R. P. Nimmer ◽

J. Mayers

Keyword(s):

Deformation Theory ◽

Cylindrical Shells ◽

Material Behavior ◽

Nonlinear Material ◽

Polyhedral Surface ◽

Buckling Loads ◽

Accurate Representation ◽

Mechanism Model ◽

Previously Treated ◽

Circular Cylindrical Shells

The elasto-plastic buckling and postbuckling of imperfect, thin, circular cylindrical shells in axial compression is studied with the use of a mechanism model specifically designed to achieve an accurate representation of the developable polyhedral surface of Yoshimura. The formulation makes it possible to study the influence of asymmetric imperfection patterns of significantly larger amplitudes than previously treated. Elasto-plastic effects are included using a deformation theory of plasticity and Reissner’s variational principle. Material-sensitive load-shortening curves are obtained exhibiting initial-maximum values for the average axial stresses of imperfect shells that tend toward vanishingly small magnitudes with increasing radius-to-thickness ratio and attendant imperfections.

Download Full-text