Creep analysis of orthotropic rotating cylinders considering finite strains

Bhatnagar, N. S.; Kulkarni, Pradnya; Arya, Vinod K.

doi:10.1016/0020-7462(86)90013-2

Cited by 12 publications

(5 citation statements)

References 7 publications

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“…The amount of increase and decrease observed in effective stress, respectively, near the inner and outer radii, increase with increasing particle gradient in the cylinders. The strain rates given by Equations (13) and (14) are dependent on the effective strain rate, _ " e , which ultimately depend upon stress difference (r e À r 0 ), as revealed from creep law, Equation (5). Therefore, to investigate the effect of particle (SiC p ) gradient on the creep rates, the distribution of (r e À r 0 ) is plotted in Figure 7.…”

Section: Distribution Of Stresses and Strain Ratesmentioning

confidence: 99%

Modeling Steady State Creep in Functionally Graded Thick Cylinder Subjected to Internal Pressure

Singh¹,

Gupta

2009

Journal of Composite Materials

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The steady state creep behavior in an isotropic functionally graded composite cylinder, subjected to internal pressure has been investigated. The cylinder is assumed to be made of composite containing silicon carbide particles in a matrix of pure aluminum. The creep behavior of the material has been described by threshold stress based creep law with a stress exponent of five. The effect of imposing linear particle gradient on the distribution of stress and strain rates in the composite cylinder has been investigated. The study reveals that for the assumed linear particle distribution, the radial stress decreases throughout the cylinder with increase in particle gradient, whereas the tangential, axial, and effective stresses increase significantly near the inner radius but show significant decrease toward the outer radius. The strain rates in the composite cylinder could be reduced significantly by employing gradient in the distribution of reinforcement while keeping the same average amount of reinforcement.

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Section: Distribution Of Stresses and Strain Ratesmentioning

confidence: 99%

Modeling Steady State Creep in Functionally Graded Thick Cylinder Subjected to Internal Pressure

Singh¹,

Gupta

2009

Journal of Composite Materials

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“…N. S. Bhatnagar, P. S. Kulkarni and V. K. Arya (1986) developed an application based on finite strain theory and demonstrated that if creep analysis is performed with respect to small strain theory, the structure of the cylinder would not be safe.…”

Section: Literature Reviewmentioning

confidence: 99%

Creep Analysis of Thick Walled Cylinder under Constant Internal Pressure

Bansal¹,

Singh

2022

MSF

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In this work, the creep analysis of thick-walled rotating cylinder made of Aluminum Silicon Carbide under internal pressure has been investigated taking some assumptions, viz. no change in the volume of the cylinder, cylinder material is anisotropic, principal axes coincides with the axes of anisotropy, effective stress is dependent upon effective strain rate, and there is zero strain in the axial direction (Z direction in polar coordinate). Sherby’s law has been used to calculate the creep rate. After finding the formulas for radial, tangential and axial stresses for anisotropic cylinder, the findings have been validated by checking the values and comparing the graphs for an isotropic cylinder case with one of the already published research for isotropic cylinders with similar conditions. The graphs plotted in cases of anisotropic cylinder, enables us to conclude that despite large stress values in the radial and tangential directions, the creep rates in such cylinders were found to be approximately zero. This led to deduce that anisotropy is very helpful in designing long-lasting cylinders. In corollary, anisotropy helps in minimizing creep behaviour in radial and tangential directions.

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“…Sim and Penny [7] used reference stress techniques to investigate the plane strain creep behavior of thick-walled cylinders. Bhatnagar et al [8][9][10][11] investigated the creep behavior of a thick-walled cylinder under various conditions. Simonian [12] calculated the thermal stresses in thick-walled cylinders, taking into account non-linear creep.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Numerical Modelling of Creep Deformation of Viscoelastic Thick-Walled Cylinder with Fractional Maxwell Model

et al. 2021

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The deformation of a thick-walled cylinder under pressure is a classic elastic mechanics problem with various engineering applications. In this study, the displacement of a viscoelastic thick-walled cylinder under internal pressure is investigated via analytical as well as numerical modelling. The fractional Maxwell model is initially introduced to describe the creep deformation of high-strength Q460 steel. Subsequently, an analytical solution to the creep deformation of the thick-walled cylinder under both internal and external pressures is deduced with the corresponding principle. The analytical solution is examined with a numerical simulation that incorporates the fractional Maxwell model by a user-defined subroutine. The numerical simulation agrees well with the analytical solution. The limitations of the current study are also discussed.

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Creep analysis of orthotropic rotating cylinders considering finite strains

Cited by 12 publications

References 7 publications

Modeling Steady State Creep in Functionally Graded Thick Cylinder Subjected to Internal Pressure

Modeling Steady State Creep in Functionally Graded Thick Cylinder Subjected to Internal Pressure

Creep Analysis of Thick Walled Cylinder under Constant Internal Pressure

Analytical and Numerical Modelling of Creep Deformation of Viscoelastic Thick-Walled Cylinder with Fractional Maxwell Model

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