Steady state creep and material parameters in a rotating disc of Al–SiCP composite

Gupta, V. K.; Singh, Satvir; Chandrawat, H.N.; Ray, S.

doi:10.1016/j.euromechsol.2003.11.005

Cited by 47 publications

(24 citation statements)

References 9 publications

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“…It is revealed that the steady state creep response of FGM disc is significantly superior as compared to a similar disc but containing uniform distribution of SiCp. Gupta et al [1,15] analyzed creep behavior of a rotating disc made of FG Al-SiCp having uniform thickness and operating under a radial thermal gradient. The study indicates that for the assumed linear distribution of SiCp, the steady-state strain rates in an FGM disc are significantly lower than that observed in an isotropic disc having uniform distribution of SiCp.…”

Section: Introductionmentioning

confidence: 99%

Creep modeling in functionally graded rotating disc of variable thickness

2010

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Creep behavior of rotating discs made of functionally graded materials with linearly varying thickness has been investigated. The discs under investigation are made of composite containing silicon carbide particles in a matrix of pure aluminum. The creep behavior of the composite has been described by threshold stress based creep law by assuming a stress exponent of 5. The effect of imposing linear particle gradient on the distribution of stresses and strain rates in the composite disc has been investigated. The study indicates that with increase in particle gradient in the disc, the radial stress increases throughout the disc, whereas the tangential and effective stresses increase near the inner radius but decrease near the outer radius. The steady state strain rates in the composite disc, having gradient in the distribution of reinforcement, are significantly lower than that observed in a disc having uniform distribution of reinforcement.

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Section: Introductionmentioning

confidence: 99%

Creep modeling in functionally graded rotating disc of variable thickness

2010

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“…The material creep behavior is described by Sherby's constitutive model using the Pandey's experimental results on Al-SiC composite [5] as follows:ε where P, T (r ), and V (r ) are particle size (µm), temperature (K) and volume percent of SiC particles, respectively. In this study, particle size is a constant of P = 1.7 µm…”

Section: Creep Constitutive Modelmentioning

confidence: 99%

“…In this study, elastic deformation is neglected when compared with creep deformation. Steady-state creep and material parameters in a rotating disk of Al-SiC composite were presented by Gupta et al [5]. They described the creep behavior of the composite by Sherby's constitutive creep model [6] which was claimed to work better than Norton's creep model.…”

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confidence: 97%

Time-dependent thermoelastic creep analysis of rotating disk made of Al–SiC composite

et al. 2011

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Time-dependent creep stress redistribution analysis of rotating disk made of Al-SiC composite is investigated using Mendelson's method of successive elastic solution. All mechanical and thermal properties except Poisson's ratio are radial dependent based on volume fraction percent of SiC reinforcement. The material creep behavior is described by Sherby's constitutive model using Pandey's experimental results on Al-SiC composite. Loading is an inertia body force due to rotation and a distributed temperature field due to steady-state heat conduction from inner to outer surface of the disk. Using equations of equilibrium, stress strain, and strain displacement, a differential equation, containing creep strains, for displacement is obtained. History of stresses and deformations are calculated using method of successive elastic solution. It is concluded that the uniform distribution of SiC reinforcement does not considerably influence on stresses. However, the minimum and most uniform distribution of circumferential and effective thermoelastic stresses belongs to composite disk of aluminum with 0% SiC at inner surface and 40% SiC at outer surface. It has also been found that the stresses, displacement, and creep strains are changing with time at a decreasing rate so that after almost 50 years the solution approaches the steady-state condition.

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“…Among the recent works are those of Eraslan [2] and Gupta et al [3]. Nonetheless, only a few solutions are carried out for the von Mises' yield criterion with its associated flow rule: [4,5] for stress analysis, [6] for strain analysis, and [7] for buckling analysis.…”

Section: Introductionmentioning

confidence: 99%

Deformation and Stress Analysis of an Anisotropic Rotating Annular Disk

Alexandrova

Real

2008

International Journal for Computational Methods in Engineering

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The plane state of stress in a rotating elastic-perfectly plastic anisotropic annular disk of constant thickness and density is studied. It is shown that the key design geometric parameters of the disk, namely, its mean radius and width, influence the stress and strain distributions. To explicitly get the total strain field, including elastic and plastic regions, a new, original, semi-analytical method is developed. The disk material is assumed to be elastically and plastically anisotropic, obeying the Hill's quadratic yield criterion in the plastic zone and the generalized Hooke's law in the elastic zone. The results may be used in a preliminary design of rotating disks as well as in implementation of numerical codes.

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Steady state creep and material parameters in a rotating disc of Al–SiCP composite

Cited by 47 publications

References 9 publications

Creep modeling in functionally graded rotating disc of variable thickness

Creep modeling in functionally graded rotating disc of variable thickness

Time-dependent thermoelastic creep analysis of rotating disk made of Al–SiC composite

Deformation and Stress Analysis of an Anisotropic Rotating Annular Disk

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