Viscoelastic Analysis of Flexible Pavements and Its Effects on Top-Down Cracking

Kim, Jaeseung; Roque, Reynaldo; Byron, Thomas

doi:10.1061/(asce)0899-1561(2009)21:7(324)

Cited by 51 publications

(17 citation statements)

References 12 publications

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“…rutting, fatigue and roughness) were calculated and compared for the three axle configurations (single, tandem and tridem) at various speeds. Critical responses include maximum vertical compressive strain on top of the subgrade material, maximum horizontal tensile strain at the bottom of the HMA layer and also maximum vertical tensile and compressive strain slightly below the top of the surface layer (Huang 2004, Papagiannakis and Masad 2008, Kim et al 2009). …”

Section: Problem Definitionmentioning

confidence: 99%

“…For predicting the time-dependent response using FEM, to simplify the analysis of flexible pavement by using FEM, linear elastic and time-independent material behaviour for the base and subgrade layer and linear viscoelastic material property for the asphalt layer were used (Yoo 2006, Kim et al 2009, De Araújo Jr. et al 2010, Wang 2011, Kim 2011. It is well known that base and subbase soils are not elastic and result in permanent deformation under stationary loads.…”

Section: Materials Characterisationmentioning

confidence: 99%

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Numerical comparison of flexible pavement dynamic response under different axles

Sarkar

2015

International Journal of Pavement Engineering

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A three-dimensional finite element model was utilised to examine the flexible pavement dynamic response under single, tandem and tridem axles at different speeds. Using two different hot-mix asphalt (HMA) layer thicknesses, 15.2 and 25.4 cm, the dynamic effects of moving axles were investigated on critical responses. These responses include the tensile strain at the bottom of asphalt layer, compressive strain on the top of subgrade and tensile and compressive strain on the surface layer. In this study, the HMA layer and other layers were characterised as linear viscoelastic and elastic material, respectively. Since this research focuses specifically on the time and dynamic effects, considering the transient dynamic loading and inertia forces, implicit dynamic analysis was done. The important findings are as follows.(1) Strains induced by tridem axles could be greater than tandem axles or even equal at different speeds.(2) It cannot be stated that axles always induce greater critical response value to road systems at lower speed because at higher speed they can also induce greater critical response value in pavements than that at lower speed. (3) Changing trend and changing rate of strains with speed are strongly affected by pavement thickness. In general, the effects of different axle configurations are strongly affected by moving speed and surface layer thickness.

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Section: Problem Definitionmentioning

confidence: 99%

Section: Materials Characterisationmentioning

confidence: 99%

Numerical comparison of flexible pavement dynamic response under different axles

Sarkar

2015

International Journal of Pavement Engineering

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“…Eventually, the Prony series parameters were successfully determined without any negative values as shown in Table 2. Further details of obtaining the Prony series parameters were introduced elsewhere [13,14]. Table 2 represents the Prony series parameters determined for viscoelastic material property inputs used for FEA.…”

Section: Materials Characterizationmentioning

confidence: 99%

Evaluation of interlayer bonding condition on structural response characteristics of asphalt pavement using finite element analysis and full-scale field tests

Chun

Kim

Greene

et al. 2015

Construction and Building Materials

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“…Usually an axisymmetric computational domain is selected to numerically simulate multilayered structures such as the multilayer pavements under single tire loading [13,[33][34][35]. Using the axisymmetric modeling could simulate circular loading and also do not require excessive computational time.…”

Section: Axisymmetric Layerwise Finite Element Formulationmentioning

confidence: 99%

Dynamic Viscoelastic Incremental-Layerwise Finite Element Method for Multilayered Structure Analysis Based on the Relaxation Approach

2014

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This paper presents an axisymmetric layerwise finite element formulation for dynamic analysis of laminated structures with embedded viscoelastic material whose constitutive behavior is represented by the Prony-generalized Maxwell series. To account the time dependence of the constitutive relations of linear viscoelastic materials, the incremental formulation in the temporal domain is used. Layerwise finite element has been shown to provide an efficient and accurate tool for the simulation of laminated structure. Most of the previous work on numerical simulation of laminated structures has been limited to elastic material behavior. Thus, the current work focuses on layerwise finite element analysis of laminated structures with embedded viscoelastic material. A computer code based on the presented formulation has been developed to provide the numerical results. The present approach is verified by studying its convergence behavior and comparing the numerical results with those obtained using the ABAQUS software. Finally, and as an application of the presented formulation, the effects of load duration on the dynamic structural responses of multilayered pavements are studied.

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Viscoelastic Analysis of Flexible Pavements and Its Effects on Top-Down Cracking

Cited by 51 publications

References 12 publications

Numerical comparison of flexible pavement dynamic response under different axles

Numerical comparison of flexible pavement dynamic response under different axles

Evaluation of interlayer bonding condition on structural response characteristics of asphalt pavement using finite element analysis and full-scale field tests

Dynamic Viscoelastic Incremental-Layerwise Finite Element Method for Multilayered Structure Analysis Based on the Relaxation Approach

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