Simulation of inelastic deformation in road structures due to cyclic mechanical and thermal loads

Kettil, Per; Lenhof, Bernd; Runesson, Kenneth; Wiberg, Nils‐Erik

doi:10.1016/j.compstruc.2006.08.060

Cited by 26 publications

(10 citation statements)

References 12 publications

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“…There are mainly three loading patterns currently employed in pavement dynamic response analyses: half-sinusoidal impulsive load [17], triangular impulsive load [18], and vertical stepwise load [15,19]. Their loading patterns are shown in Figure 1.…”

Section: Loading Patterns Of Dynamic Loadmentioning

confidence: 99%

Response Analysis of Asphalt Pavement under Dynamic Loadings: Loading Equivalence

Gao

Dan

2019

Mathematical Problems in Engineering

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This paper establishes the equivalent relationships between the half-sinusoidal load, triangular load, vertical stepwise load, and moving traffic load. The governing equation was established for analyzing the dynamic responses of pavement, and half-sinusoidal load, triangular load, and vertical stepwise load functions were transformed into Fourier series expressions. The partial differential governing equations were simplified as ordinary differential equations and the analytical solutions were obtained. Further, the solutions were validated through comparing the theoretical results with numerical simulated results. Calculation results revealed that, for unchanged load periods, increasing the amplitudes of the three loads by 1.06, 1.31, and 1.35 times can better simulate the moving traffic loads. For unchanged load function amplitudes, increasing the function periods by 1.07, 2.23, and 2.1 times (for half-sinusoidal, triangular, and vertical stepwise loads, resp.) can improve the simulation performance. The fatigue life of asphalt pavements under the moving traffic load agrees with that of the three load simulations, indicating that the fatigue life of asphalt pavements is only associated with the load amplitude but not the load patterns.

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Section: Loading Patterns Of Dynamic Loadmentioning

confidence: 99%

Response Analysis of Asphalt Pavement under Dynamic Loadings: Loading Equivalence

Gao

Dan

2019

Mathematical Problems in Engineering

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“…In contrast, the degradation (damage) models should be basically the non-classical or non-standard models. The classical models are used in order to describe a degradation of the pavement layer in two cases: a) when the degradation issue comes to the appropriate material model [47], [48], [49] (e.g. to the relations of the plasticity, viscosity or weakening), b) when the single crack constitutes the degradation (e.g.…”

Section: The Scope (Purpose) Criterion Of Pavement Model's Usementioning

confidence: 99%

The Classification of Mechanical Models of Road Pavements

Nagórski

2018

Archives of Civil Engineering

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A review of mechanical models of road pavements in the form of a proposal of classification of these models is presented. It is assumed an autonomy of the following elements of pavement model: the models of structural layers, the subgrade model, the interlayer bonding models, including bonding of pavement structure with its subgrade, the models of external impacts on pavement layers, including load of heavy traffic, the models of pavement environment impacts on structural layers’ borders (lateral) and subgrade borders (including the lower one) – according to the selected criteria such as structural criterion, material criterion (physical criterion), dimension criterion and model scope (purpose) criterion − in the frame of assumptions of the classical Newtonian deterministic mechanics. The presented attempt to classify mechanical models of road pavements supports to orientate the roadmen community within a scope of the mechanistic modelling of these structures.

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“…The basic mechanical parameters of the materials cannot be obtained, the method cannot fully reflect the actual road performance of a structure or material, and the experimental results cannot be used for theoretical calculations in pavement design. Software using the finite element method (FEM) was also used to predict the rutting of highway pavement [4,[15][16][17][18]. The results have been widely accepted.…”

Section: Introductionmentioning

confidence: 99%

Research on Predicting the Rutting of Asphalt Pavement Based on a Simplified Burgers Creep Model

Lian-sheng

Dan

Chen

2017

Mathematical Problems in Engineering

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Rutting is one of the most important distresses for asphalt pavement structures especially due to the heavy traffic loadings. In this paper, the solution of Burgers model is employed and simplified, which makes the residual strain only depend on the applied load. Then, the governing equation for dynamic response of pavement was established and a semianalytical solution related to the stress state of asphalt pavement was obtained. Further, an explicit expression was presented and validated to calculate rutting depth of asphalt pavement through incorporating the dynamic stress solution, simplified Burgers model solution, and time hardening model. Compared with the FEM method, the calculation error is less than 5%, which proved the method proposed to be feasible. Compared with the numerical simulation method, every derivation of the rutting formula in this paper has the clear physical meaning and is hence easy to be understood. Besides, the proposed method can save a significant amount of time consumed due to its fast and reliable calculation.

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Simulation of inelastic deformation in road structures due to cyclic mechanical and thermal loads

Cited by 26 publications

References 12 publications

Response Analysis of Asphalt Pavement under Dynamic Loadings: Loading Equivalence

Response Analysis of Asphalt Pavement under Dynamic Loadings: Loading Equivalence

The Classification of Mechanical Models of Road Pavements

Research on Predicting the Rutting of Asphalt Pavement Based on a Simplified Burgers Creep Model

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