Creep and Damage of Materials at Elevated Temperatures

Altenbach, Holm

doi:10.1007/978-3-031-04354-3_1

Cited by 3 publications

(6 citation statements)

References 124 publications

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“…In the case of the availability of experimental data that will indicate the orthotropy of irradiation creep, numerical modeling due to the linearity of the equations will not present difficulties and can be carried out together with the calculation of thermal creep strains [2]. If it is known about the manufacture of structural elements from sheets at an angle to the direction of rolling, then the equations of this method should be supplemented by an algorithm for the transition to a new coordinate system [11]. In our work, numerical studies were performed for one material with a rather limited temperature range and neutron fluence, for one, albeit common, type of stress concentrators.…”

Section: Discussion Of Results Of the Numerical Modeling Of Deformati...mentioning

confidence: 99%

“…In this study, it is believed that the direction of the axes of the coordinate system of the plate coincides with the directions of the main axes of orthotropy. The methodology of research with a different coordinate system is reported, for example, in [1,11], and can be applied if necessary. Also, the development of irradiation creep strains possible during irradiation is not taken into account.…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

“…A number of similar equations have been built, among which we note the classical models given in [1]. Despite the closed form of evolution equations, all of them in the general three-dimensional case require long-term experimental research [11]. That is, the power, efficiency, and physical reliability of tensor models to describe damage is often offset by the need for very costly long-term experiments to determine the values of the constants that are included in them.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…It should also be noted that in most cases at present it is possible to build state equations to describe the two-dimensional stress state that occurs in thin-walled structural elements. In this case, the material is described using models of orthotropy (transversal isotropy) [11].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Determining the influence of irradiation swelling on creep and damage in elements with orthotropic material properties

Breslavsky

Mietielov

Tatarinova

2023

EEJET

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This paper reports a method that numerically models the deformation and accumulation of hidden damage in structural elements that are in an inhomogeneous thermal field and are exposed to radiation. Materials considered are those exhibiting orthotropy (transversal isotropy) of long-term properties. The problem is stated as an boundary – initial value one. To solve it, the finite element method and the initial-difference method of time integration are used. To simulate the anisotropy of the process of accumulation of hidden damage, a damage tensor is applied. The development of irradiation swelling strains is described using the equation for a limited temperature range and a specific fluence value. The results of numerical modeling of creep and damage in plates in tension with circular notches, which are in an inhomogeneous temperature field, are considered. The material of the plates is a titanium alloy VT1-0. It was found that the effect of irradiation significantly, up to 6‒7 %, increases the level of deformation in the plate. Radiation significantly, by almost 4 times, reduces the time until the completion of the hidden fracture of the plates. It was found that orthotropy of radiation swelling properties leads to redistribution of areas with significant strains and damage values. It has been established that the effect of irradiation swelling also qualitatively changes the nature of the distribution of maximum damage in the plate, which extends to a fairly large area. Such results are due to the additional effect of irradiation swelling strains on the rate of general irreversible deformation and redistribution of stresses

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Section: Discussion Of Results Of the Numerical Modeling Of Deformati...mentioning

confidence: 99%

Section: The Study Materials and Methodsmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Determining the influence of irradiation swelling on creep and damage in elements with orthotropic material properties

Breslavsky

Mietielov

Tatarinova

2023

EEJET

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“…Puck followed up on the work of Hashin by recognizing two different modes of fiber failure, similar to Hashin criteria for fiber failure , compressive and tensile, and in contrast , presenting three different modes in inter-fiber failure, modes A, B and C, which encompass fiber-matrix debonding or matrix cracking [49][50] . Fiber tension:…”

Section: Puck Failure Criteriamentioning

confidence: 99%

Research progress of evaluation methods of failure criteria for fiber reinforced composites

Ettoumi

2023

J. Phys.: Conf. Ser.

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Integration of composite materials in aviation applications undeniably offer multiple important benefits, and more modelling techniques and failure analysis tools are increasingly being developed in evaluated to reduce the high costs associated with investigating the mechanical characteristics and prediction of failure of fiber reinforced composites. This article evaluates and compares between some of the most common failure criteria, Hashin, Puck and maximum stress criteria. The conclusion of this article shows that the interactive failure criteria are more adequate to use in the prediction of failure although they are inherently more complex to describe.

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The investigation of singular integro-differential equations relating to adhesive contact problems of the theory of viscoelasticity

Shavlakadze

Odishelidze

Criado-Aldeanueva

2021

Z. Angew. Math. Phys.

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The exact and approximate solutions of singular integro-differential equations relating to the problems of interaction of an elastic thin finite or infinite non-homogeneous patch with a plate are considered, provided that the materials of plate and patch possess the creep property. Using the method of orthogonal polynomials the problem is reduced to the infinite system of Volterra integral equations, and using the method of integral transformations this problem is reduced to the different boundary value problems of the theory of analytic functions. An asymptotic analysis is also performed.

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Creep and Damage of Materials at Elevated Temperatures

Cited by 3 publications

References 124 publications

Determining the influence of irradiation swelling on creep and damage in elements with orthotropic material properties

Determining the influence of irradiation swelling on creep and damage in elements with orthotropic material properties

Research progress of evaluation methods of failure criteria for fiber reinforced composites

The investigation of singular integro-differential equations relating to adhesive contact problems of the theory of viscoelasticity

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