Orthotropic composite constitutive model of mineral–asphalt mix reinforced with grid and its approximation with an isotropic model

Gajewski, Marcin; Jemioło, Stanisław

doi:10.1080/14680629.2014.884977

Cited by 7 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The grid principal directions are coinciding with the axes of the coordinate system, cf. [2,14] (Figure 5). The problem was solved in two variants.…”

Section: Fem Model Of the Test Apparatus And Analysis Of The Tests With Static Loadingmentioning

confidence: 99%

“…In designing and production of the pavements the glass, steel and carbon fiber grids are more often used [1][2][3][4][5][6][7]. Nevertheless, in the direct designing calculations, the grid reinforcement is not included.…”

Section: Introductionmentioning

confidence: 99%

“…the region of connection of the pavement layers with each other, which can additionally be enriched with reinforcing grid. It can be concluded that the constitutive models of road materials are quite well developed [10][11][12][13], while the interface models require refinement and experimental verification [2,14]. To carry out this verification indirectly the apparatus proposed in [3] may also be used.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estimation of the Grid Reinforcement Influence on Asphalt Plate Behaviour through FEM Analysis and Laboratory Testing

Beata¹

2018

TCEIA

View full text Add to dashboard Cite

The paper deals with finite element modelling of the test carried out on plate samples made of asphalt mixture and reinforced with glass grid. The apparatus constructed for testing of plate samples in the large scale is modelled in detail as a contact problem. All materials are assumed to be linearly elastic and isotropic, and stiffness modulus of the asphalt mixture is determined on the samples cut out from the plate. The finite element solutions of the static indentation of the sample resting on elastic support with a circular steel indenter have shown that the grid reinforcement influence the overall behavior of the sample only in non-standard loading cases causing inhomogeneity of stress and strain fields or when the ratio between stiffness of the reinforced material and reinforcement material is particularly high (for example in case of asphalt mixtures at higher temperatures). The second conclusion was proven experimentally in the fatigue test carried out on reinforced and non-reinforced asphalt (HMAC 16 20/30) plate in two different temperatures equal to 10 and 30[ o C]. In the higher temperature the maximum norm of the vertical displacement is increasing faster for non-reinforced plate than for the reinforced one.

show abstract

“…The grid principal directions are coinciding with the axes of the coordinate system, cf. [2,14] (Figure 5). The problem was solved in two variants.…”

Section: Fem Model Of the Test Apparatus And Analysis Of The Tests With Static Loadingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of the Grid Reinforcement Influence on Asphalt Plate Behaviour through FEM Analysis and Laboratory Testing

Beata¹

2018

TCEIA

View full text Add to dashboard Cite

show abstract

“…The rheological properties of asphalt mixture are complex and the constitutive relationships between stress and strain tensors can be linear or nonlinear depending on the strain amplitude. Some studies [11,12] have shown that both bitumen and asphalt mixtures have linear behaviour at low strain levels, while other studies [13][14][15] have shown that asphaltic materials exhibit nonlinear behaviour at high strain levels. Researchers generally treat this material as isotropic when considering the properties of asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Mortar’s Poisson Ratio and Viscous Properties on Effective Stiffness and Anisotropy of Asphalt Mixture

Gajewski

Król

2022

Materials

View full text Add to dashboard Cite

This paper presents the results of a research study and analysis conducted to determine the degree of anisotropy of asphalt concrete in terms of its initial elastic properties. The analysis of asphalt concrete was focused on determining the effective constrained stiffness modulus in three mutually perpendicular directions based on the finite element method. The internal structure of the asphalt concrete was divided into the mortar phase and the mineral aggregate phase. Static creep tests using the Bending Beam Rheometer were conducted for the mortar phase to fit the rheological model. The aggregate arrangement and orientation were analysed using an image analytical technique for the mineral phase. The Finite Element Method (FEM) meshes were prepared based on grey images with an assumption of plane strain in 2D formulation. Using the FEM model, the tension/compression tests using selected characteristic directions were conducted, and the effective constrained stiffness moduli were estimated. This study showed a dominant horizontal direction for all coarse aggregates resulting from the normal force of the road roller and paving machines during laying and compaction on a road site. Depending on the values of the mortar’s mechanical parameters and the load direction, the effective stiffness modulus might differ by ±20%. Based on the FEM analysis, this result was proven and commented on through an effective directional modulus evaluation and a presentation of internal stress distribution. Depending on the shape and orientation of the aggregates, it was possible to observe local “stress bridging” (transferring stresses from aggregate to aggregate when contacting). Moreover, the rheological properties of the mortar were considered by assuming two limiting situations (instantaneous and relaxed moduli), determining the bands of all possible solutions. In the performed FEM analysis, the influence of the Poisson ratio was also considered. The analysed asphalt concrete tends to be isotropic when the Poisson’s mortar ratio is close to the value of 0.5, which agrees with the physical expectations. The obtained results are limited to particular asphalt concrete and should not be extrapolated to other asphalt mixture types without prior analysis.

show abstract

Anisotropy of bituminous mixture in the linear viscoelastic domain

Benedetto

Sauzéat

Clec’h

2016

Mech Time-Depend Mater

View full text Add to dashboard Cite

Orthotropic composite constitutive model of mineral–asphalt mix reinforced with grid and its approximation with an isotropic model

Cited by 7 publications

References 11 publications

Estimation of the Grid Reinforcement Influence on Asphalt Plate Behaviour through FEM Analysis and Laboratory Testing

Estimation of the Grid Reinforcement Influence on Asphalt Plate Behaviour through FEM Analysis and Laboratory Testing

The Influence of Mortar’s Poisson Ratio and Viscous Properties on Effective Stiffness and Anisotropy of Asphalt Mixture

Anisotropy of bituminous mixture in the linear viscoelastic domain

Contact Info

Product

Resources

About