Finite-Layer Approach to Pavement Response Evaluation

Siddharthan, Raj; Krishnamenon, N.; Sebaaly, Peter E.

doi:10.3141/1709-06

Cited by 42 publications

(11 citation statements)

References 8 publications

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“…Based on the obtained effective modulus, the stress/strain fields of the mix (as a homogenized material) are calculated on top of a pavement structure. The calculation is carried out by means of any available pavement analysis tool, which can be analytical methods such as ElSYM5 and 3D-MOVE (30,31) or numerical methods such as FEM and DEM. Based on the calculated results, the critical locations and critical times where and when raveling is most probable to occur are determined.…”

Section: General Proceduresmentioning

confidence: 99%

Simple Homogenization-Based Approach to Predict Raveling in Porous Asphalt

Zhang

Anupam

Skarpas

et al. 2020

Transportation Research Record: Journal of the Transportation R

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In the Netherlands, more than 80% of the highways are surfaced by porous asphalt (PA) mixes. The benefits of using PA mixes include, among others, the reduction of noise and the improvement of skid resistance. However, pavements with PA mixes are known to have a shorter lifetime and higher maintenance costs as compared with traditional dense asphalt mixes. Raveling is one of the most prominent distresses that occur on PA mix pavements. To analyze the raveling distress of a PA mix pavement, the stress and strain fields at the component level are required. Computational models based on finite element methods (FEM), discrete element methods (DEM), or both, can be used to compute local stress and strain fields. However, they require the development of large FEM meshes and large-scale computational facilities. As an alternative, the homogenization technique provides a way to calculate the stress and strain fields at the component level without the need for much computation power. This study aims to propose a new approach to analyze the raveling distress of a PA mix pavement by using the homogenization technique. To demonstrate the application of the proposed approach, a real field-like example was presented. In the real field-like example, the Mori–Tanaka model was used as a homogenization technique. The commonly available pavement analysis tool 3D-MOVE was used to compute the response of the analyzed pavement. In general, it was concluded that the homogenization technique could be a reliable and effective way to analyze the raveling distress of a PA mix pavement.

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Section: General Proceduresmentioning

confidence: 99%

Simple Homogenization-Based Approach to Predict Raveling in Porous Asphalt

Zhang

Anupam

Skarpas

et al. 2020

Transportation Research Record: Journal of the Transportation R

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“…By means of the homogenisation technique, the effective stiffness of the mix is determined from the properties of its different phases. On the basis of the homogenised stiffness, the stress/strain fields of the mix can be calculated by means of pavement analysis tools (Siddharthan et al 1998, Siddharthan et al 2000. Lastly, the local stress/strain fields in the individual phases can be calculated by using the homogenisation technique in an inverse way.…”

Section: Introductionmentioning

confidence: 99%

Effect of stone-on-stone contact on porous asphalt mixes: micromechanical analysis

Zhang

Anupam

Scarpas

et al. 2019

International Journal of Pavement Engineering

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Within the pavement engineering community, porous asphalt (PA) mixes are regarded as mixes capable of reducing noise and improving wet skid resistance. However, these mixes are likely to have the distress of ravelling. In order to analyse the propensity of a given PA mix for ravelling, the homogenisation technique can be considered as an attractive method. Along the line of the homogenisation technique, micromechanical models have been used to predict the stiffness of asphalt mixes. However, it was found that the predicted results were not in good agreement with the experimental values due to the fact that the stiffness of interacted aggregates was not accurately accounted in the models. To deal with this issue, it is important for researchers to study the stiffness of the interacted aggregates network and its role in the behaviour of a given mix. Based on this realisation, this paper provided a methodology to estimate the stiffness of the stone-on-stone skeleton and its role in the overall response of PA mixes. The results showed that the predicted stiffness of the stone-on-stone skeleton is dependent on the loading frequency/temperature and the compaction effort. The frequency response of the stone-on-stone skeleton is similar to that of the mix.

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“…These tools are used for the design of engineering structures such as pavements. In this framework, several models compute semi-analytical solutions that do account for inertia forces (3D-Move (Siddharthan et al, 1998;Siddharthan et al, 2000) and ViscoRoute ) or do not (VEROAD (Hopman, 1996)). Otherwise from 3D-Move, the model implemented in ViscoRoute directly integrates the viscoelastic behavior of asphalt materials through the Huet-Sayegh model (Huet, 1963;Huet, 1999;Sayegh, 1965) which is particularly well-suited for the modeling of asphalt overlays (Chailleux et al, 2006;Nilsson et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Influence of sliding interfaces on the response of a layered viscoelastic medium under a moving load

Chupin

Chabot

Piau

et al. 2010

International Journal of Solids and Structures

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This article presents a method to compute the response of a viscoelastic layered half-space to a moving load when interlayer slip is considered. The Navier equations of equilibrium are solved for each layer in the frequency domain. The solution in the spatial coordinate system is subsequently obtained by means of Fast Fourier Transform and quadrature rules applied to integrable singularities. Following the global solution technique, the developed method compiles all the interface and the boundary conditions within a global matrix and it solves a unique linear system per couple of wave numbers. This method proves to be effective and is validated in an elastic case by comparison with the ALIZE-LCPC software that implements the Burmister axisymmetric solution. The influence of the interface sliding condition on the response of a layered viscoelastic medium is studied through an application to pavement structures. In this application, the effect of the load speed on vertical and horizontal profiles of the longitudinal strain and the normal stress is analyzed. It is shown, inter alia, that the maximum extension in the medium is not systematically observed at the location of an interface and that, as expected, low speeds and interlayer slip are more damaging to the structure when either a strain or a stress criterion is considered

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Finite-Layer Approach to Pavement Response Evaluation

Cited by 42 publications

References 8 publications

Simple Homogenization-Based Approach to Predict Raveling in Porous Asphalt

Simple Homogenization-Based Approach to Predict Raveling in Porous Asphalt

Effect of stone-on-stone contact on porous asphalt mixes: micromechanical analysis

Influence of sliding interfaces on the response of a layered viscoelastic medium under a moving load

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