Stress Analysis for Creep

Boyle, J. T.; Spence, J.; Bazˇant, Zdeneˇk P.

doi:10.1115/1.3167710

Cited by 15 publications

(23 citation statements)

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“…The fibers have elastic behaviour during the analysis and the Steady state creep behaviour of the matrix, which its properties are considered to be constant with temperature, is described by an exponential law as given in Equation 1. [27], ε ė= Aexp(σ e /B) (1) Also ε̇e and σ e are the equivalent stress and equivalent strain rate of the matrix respectively, will be functions of r and z coordinates. Thus, it turns out to be a very complex nonlinear problem.…”

Section: Methodsmentioning

confidence: 99%

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Determination of Exact Steady State Creep Behavior in Short Fiber Composites by Mapping Transformation Function (MTF) in MMC’s

Monfared¹

2012

MATERIALS

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A novel mathematical model based on mapping function is presented for determination of exact steady state creep behaviour in short fiber metal matrix composites 6061Al/15%SiC (MMC's) subjected to axial loading. FEM and analytical steady state Creep behaviour of 6061Al/15%SiC (MMC's) composites wasn't coinciding to the previous experimental results in Prior researches. In this paper, transformation function is introduced in order to convert previous analytical and FEM results to experimental results correctly. Mapping function method (MFM) is exact approach for transformation of analytical and FEM results to experimental results in MMC's. Also, fiber behaviour is elastic unlike creep behaviour of matrix. In addition mapping transformation function is introduced analytically. Eventually, good agreement is established between the results of new mapping function method (MFM) and previous experimental results for prediction of steady state creep behaviour in short fiber composites (SFC's).

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Section: Methodsmentioning

confidence: 99%

“…Hsueh et al [26] investigated stress transfer in a model composite containing a single embedded fiber. Boyle and Spence proposed stress analysis for creep [27]. Gao and Li [28] presented shear-lag for carbon nanotube-reinforced polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Determination of Exact Steady State Creep Behavior in Short Fiber Composites by Mapping Transformation Function (MTF) in MMC’s

Monfared¹

2012

MATERIALS

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“…An inspection of Eqs. (12)(13)(14)(15) reveals that the spatial random variation of the elastic modulus implies a modification in the computation of the elemental load vector as well. Here, F t and F cr are seen to be dependent on elastic modulus and hence will have deterministic as well as stochastic components.…”

Section: Case 1: Random Spatial Variations In the Modulus Of Elasticitymentioning

confidence: 99%

“…The definition for D(t) is derived from continuum damage mechanics principles. The creep damage growth at any location is assumed to be modelled by the Kachanov-Robotnov law [13,14]…”

Section: Problem Statementmentioning

confidence: 99%

3-D stochastic finite elements for thermal creep analysis of piping structures with spatial material inhomogeneities

Appalanaidu

Gupta

2017

Acta Mech

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A stochastic finite element-based methodology is developed for creep damage assessment in pipings carrying high-temperature fluids. The material properties are assumed to be spatially randomly inhomogeneous and are modelled as 3-D non-Gaussian fields. A spectral-based approach for random field discretization that preserves exactly the non-Gaussian characteristics is used in developing the stochastic finite element model. The meshing used in random field discretization is distinct from FE meshing, depends on the correlation characteristics of the random fields and is computationally efficient. The methodology enables estimating the failure probability and the most likely regions of failure in a section of a circular pipe.

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“…В соответствии с [12,13] можно записать связь эквивалентной приведённой обобщённой силы и эквивалентного обобщённого перемещения в виде…”

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Распараллеливание Решений Задач Деформирования При Пластическом Разупрочнении

Klebanov¹,

Адеянов²,

Adeyanov³

2011

J. Samara State Tech. Univ., Ser. Phys. & Math. Sci.

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Stress Analysis for Creep

Cited by 15 publications

References 0 publications

Determination of Exact Steady State Creep Behavior in Short Fiber Composites by Mapping Transformation Function (MTF) in MMC’s

Determination of Exact Steady State Creep Behavior in Short Fiber Composites by Mapping Transformation Function (MTF) in MMC’s

3-D stochastic finite elements for thermal creep analysis of piping structures with spatial material inhomogeneities

Распараллеливание Решений Задач Деформирования При Пластическом Разупрочнении

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