Application of Finite Layer Method in Pavement Structural Analysis

Liu, Pengfei; Xing, Qinyan; Dong, Yiyi; Wang, Dawei; Oeser, Markus; Yuan, Songmei

doi:10.3390/app7060611

Cited by 18 publications

(12 citation statements)

References 26 publications

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“…However, the cost of field tests has always been high; furthermore, the conditions cannot always be controlled completely in field tests [30]. Therefore, numerical simulations have been widely applied in research and have been accepted as an effective and efficient substitute [31].…”

Section: Development and Validation Of Finite Element Modelmentioning

confidence: 99%

Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement

et al. 2020

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Piezoelectric pavement energy harvesting is a technological approach to transform mechanical energy into electrical energy. When a piezoelectric energy harvester (PEH) is embedded in asphalt pavements or concrete pavements, it is subjected to traffic loads and generates electricity. The wander of the tire load and the positioning of the PEH affect the power generation; however, they were seldom comprehensively investigated until now. In this paper, a numerical study on the influence of embedding depth of the PEH and the horizontal distance between a tire load and the PEH on piezoelectric power generation is presented. The result shows that the relative position between the PEH and the load influences the voltage magnitude, and different modes of stress state change voltage polarity. Two mathematic correlations between the embedding depth, the horizontal distance, and the generated voltage were fitted based on the computational results. This study can be used to estimate the power generation efficiency, and thus offer basic information for further development to improve the practical design of PEHs in an asphalt pavement.

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Section: Development and Validation Of Finite Element Modelmentioning

confidence: 99%

Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement

et al. 2020

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“…e rst step in the FE formulation is to express the element coordinates and element displacements in the form of interpolations using the natural coordinate system of the element. By using SAFEM, the general form of the shape functions de ning the variation of displacements can be written as a Fourier series in which z ranges between zero and a, as shown in Figure 4 [18][19][20][21][22][23][24][25][26][27]39].…”

Section: Formulation Of Semianalytical Finite Elementmentioning

confidence: 99%

“…Equation (8) was used to simulate the rectangular/square contact shape in previous works [18,19]. Actually, if Z t1 and Z t2 vary with the x-coordinates of di erent contact elements, di erent contact shapes can be captured such as circular, ellipsoid, and even irregular shapes [20][21][22][23][24][25][26][27]. After determining the element displacement, geometrical and physical equations can be used to obtain the strain and stress of one element.…”

Section: Formulation Of Semianalytical Finite Elementmentioning

confidence: 99%

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Application of Linear Viscoelastic Properties in Semianalytical Finite Element Method with Recursive Time Integration to Analyze Asphalt Pavement Structure

Liu

Xing

Wang

et al. 2018

Advances in Civil Engineering

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Traditionally, asphalt pavements are considered as linear elastic materials in finite element (FE) method to save computational time for engineering design. However, asphalt mixture exhibits linear viscoelasticity at small strain and low temperature. erefore, the results derived from the elastic analysis will inevitably lead to discrepancies from reality. Currently, several FE programs have already adopted viscoelasticity, but the high hardware demands and long execution times render them suitable primarily for research purposes. Semianalytical finite element method (SAFEM) was proposed to solve the abovementioned problem. e SAFEM is a three-dimensional FE algorithm that only requires a two-dimensional mesh by incorporating the Fourier series in the third dimension, which can significantly reduce the computational time. is paper describes the development of SAFEM to capture the viscoelastic property of asphalt pavements by using a recursive formulation. e formulation is verified by comparison with the commercial FE software ABAQUS. An application example is presented for simulations of creep deformation of the asphalt pavement. e investigation shows that the SAFEM is an efficient tool for pavement engineers to fast and reliably predict asphalt pavement responses; furthermore, the SAFEM provides a flexible, robust platform for the future development in the numerical simulation of asphalt pavements.

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“…The middle and lower asphalt surfaces of the drainage surface layer are dense asphalt mixture, which can form a drainage channel inside the asphalt mixture. In this way, the water seeping into the drainage layer on rainy days can be discharged out of the pavement structure along the pavement slope [ 4 , 5 , 6 ]. The drainage characteristics of drainage asphalt pavements are indicated by their permeability: the higher the permeability, the greater the drainage capacity.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Calculation of a Three-Dimensional Finite Element Model of Infiltration in Drainage Asphalt Pavement

Zhang

Wang

et al. 2020

Materials

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Drainage asphalt pavement provides excellent drainage performance and driving safety, where the permeability of the pavement is the critical performance. When analyzing the permeability of drainage asphalt pavements, the previously used two-dimensional infiltration calculation model with boundary conditions deviates from the real situation. In this article, a three-dimensional infiltration finite element method was proposed to evaluate the permeability of pavement, and the feasibility of the three-dimensional infiltration finite element method to evaluate the drainage capacity of drainage asphalt pavement was verified by using the single-sided permeability test of indoor rutted slabs of drainage asphalt mixtures as an example. Finally, the effects of the longitudinal slope of the pavement on the drainage performance of the drained asphalt pavement was investigated by calculations based on the three-dimensional infiltration finite element method. The results indicated that: when the longitudinal slope was less than 6%, the influence of longitudinal slope size on the drainage capacity of drainage asphalt pavement was very small. When the gradient of the longitudinal slope from 0 to 6%, the critical drainage capacity of the pavement corresponding to each cross slope was maintained at a relatively stable value.

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Application of Finite Layer Method in Pavement Structural Analysis

Cited by 18 publications

References 26 publications

Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement

Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement

Application of Linear Viscoelastic Properties in Semianalytical Finite Element Method with Recursive Time Integration to Analyze Asphalt Pavement Structure

Experimental Study and Calculation of a Three-Dimensional Finite Element Model of Infiltration in Drainage Asphalt Pavement

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