Quasi-static analysis of multilayered domains with viscoelastic layer using incremental-layerwise finite element method

Ameri, Mahmoud; Malakouti, M.; Malekzadeh, P.

doi:10.1007/s11043-013-9227-z

Cited by 20 publications

(11 citation statements)

References 39 publications

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“…Ameri et al [4] analyzed viscoelastic multilayered structures using a quasi-static finite element formulation. The influence of load rate and time on the quasistatic response of asphalt concrete pavement was investigated.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of resilient behavior of flexible pavement asphalt layers

Shafabakhsh

Tanakizadeh

2015

Mater Struct

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Asphalt concrete is a viscoelastic material that has a resilient behavior during cyclic loads. One of the important features for defining this behavior is resilient modulus (MR). Usually, asphalt mixture is laid down in two layers known as binder and surface layers at different depth beneath the road surface. The current test methods use only one loading pulse shape, namely, haversine that represents the shape of loading exerted to the binder layer. Thus, this paper investigates resilient behavior of asphalt material in different depths. Indirect tensile test was employed for determination of MR using universal testing machine. The modulus of asphalt mixture was measured by applying the two pulse shapes in a range of temperatures and pulse widths. The pulse shapes were haversine and square, describing the behavior of mixture in binder and surface layers, respectively. The test results showed that difference between resilient behavior of binder and surface layers is more apparent at high temperatures and under fast traffic loadings. In addition, using the best-fitted functions to MR results and mathematical calculations, haversine pulse widths for surface layer were specified. The MR testing under haversine pulse should be performed with longer pulse widths compared to square loading to fulfill resilient behavior of surface layer accurately. The MR test under haversine pulse was more accurate and beneficial than square one.

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Section: Literature Reviewmentioning

confidence: 99%

Evaluation of resilient behavior of flexible pavement asphalt layers

Shafabakhsh

Tanakizadeh

2015

Mater Struct

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“…As for the dam system, the geometric properties basically remained unchanged in the loading process. So [ ] in (2) can be expressed as follows [12]:…”

Section: Determination Of Dam Displacement Fieldmentioning

confidence: 99%

Zoning Modulus Inversion Method for Concrete Dams Based on Chaos Genetic Optimization Algorithm

Zhong-ru

Huang

et al. 2015

Mathematical Problems in Engineering

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For dams and rock foundations of ages, the actual mechanical parameters sometimes differed from the design and the experimental values. Therefore, it is necessary to carry out the inversion analysis on main physical and mechanical parameters of dams and rock foundations. However, only the integrated deformation modulus can be inversed by utilizing the conventional inversion method, and it does not meet the actual situation. Therefore, a new method is developed in this paper to inverse the actual initial zoning deformation modulus and to determine the inversion objective function for the actual zoning deformation modulus, based on the dam displacement measured data and finite element calculation results. Furthermore, based on the chaos genetic optimization algorithm, the inversion method for zoning deformation modulus of dam, dam foundation and, reservoir basin is proposed. Combined with the project case, the feasibility and validity of the proposed method are verified.

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“…Besides, in such calculations, it is impossible to obtain an adequate solution with the availability of points or lines of stress concentration. The papers [23][24][25] are dedicated to the solution of threedimensional problems. In [23] the quasistatic analysis of multilayered metallic structures based on twodimensional elasticity theory is given.…”

Section: Introductionmentioning

confidence: 99%

“…The papers [23][24][25] are dedicated to the solution of threedimensional problems. In [23] the quasistatic analysis of multilayered metallic structures based on twodimensional elasticity theory is given. As a result a solution in the form of Proni series with time addition is obtained.…”

Section: Introductionmentioning

confidence: 99%

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

Романов¹,

Semina²,

Stepikov³

et al. 2017

AIP Conference Proceedings

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Abstract. The analysis of stress-strained state at the boundary «faced surface layer -substrate» is performed by methods of elasticity theory of inhomogeneous media, on exposure to the load distributed in a circle. The fundamental aspects of Kelvin -Helmholtz and Richtmayer -Meshkov instabilities are considered. The following methods are used for the research. The analytical method of solution is used for finding the temperature distribution of substrate and coating material as well as distribution of speed of material motion in deposition of the coating. Finite element method is required in accounting for the parameters of convective mixing. For the analysis of the proposed thickness and dispersion of the coating the concepts of hydrodynamic Kelvin -Helmholtz and Richtmayer -Meshkov instabilities are used. Using the mass, energy and momentum conservation laws, with allowance for the possible exothermal reactions, the system of equations of the mathematical model of electroexplosion synthesis on the basis of thermoreacting components of Ni-Al system is formulated. The degree of effect of model's parameters on dispersion and thickness of the coating is determined. The comparison of the modeling and experimental data is carried out. It is established that the due regard to the thermal effect of chemical reaction increases considerably the time of existence of the reacting elements in the liquid state and it facilitates the participation of the entire nickel in the reaction. The increased time of heat effect enables the other processes to occur more completely.

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Quasi-static analysis of multilayered domains with viscoelastic layer using incremental-layerwise finite element method

Cited by 20 publications

References 39 publications

Evaluation of resilient behavior of flexible pavement asphalt layers

Evaluation of resilient behavior of flexible pavement asphalt layers

Zoning Modulus Inversion Method for Concrete Dams Based on Chaos Genetic Optimization Algorithm

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

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