An Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design

Pan, Ernie; Chen, Ewen; Alkasawneh, Wael; Ohio. Dept. of Transportation. Office of Research and Development

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An Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design

2007-08-01
By Pan, Ernie ; Chen, Ewen ; Alkasawneh, Wael

[PDF-4.10 MB]

English

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Creators:

Pan, Ernie ; Chen, Ewen ; Alkasawneh, Wael

Pan, Ernie ; Chen, Ewen ; Alkasawneh, Wael Less -
Corporate Creators:

Ohio. Dept. of Transportation. Office of Research and Development
Corporate Contributors:

University of Akron. Dept. of Civil Engineering
Subject/TRT Terms:

[+]

Fatigue/Rutting Life Prediction Fatigue Cracking Modulus Of Resilience Multilayered Elastic Analysis Pavement Pavement Design Resilient Modulus Rutting Shear Strain Stress/Strain Discontinuity Stress Cracking Temperature Tire Contact Pressure Tire Footprint Tire Pressure
Publication/ Report Number:

FHWA/OH-2007/12
Resource Type:

Tech Report
Geographical Coverage:

United States ; Ohio

United States ; Ohio Less -
TRIS Online Accession Number:

1076705
Edition:

Final Report
Corporate Publisher:

Ohio. Dept. of Transportation. Office of Research and Development
Abstract:

The response of flexible pavement is largely influenced by the resilient modulus of the pavement profile. Different methods/approaches have been adopted in order to estimate or measure the resilient modulus of each later assuming an average modulus within the layer. In order to account for the variation in the modulus of elasticity with depth within a layer in elastic pavement analysis, which is due to temperature or moisture variation with depth, the layer should be divided into several sublayers and the modulus should be gradually varied between the layers. A powerful and innovative computer program has been developed for elastic pavement analysis that overcomes the limitations of the existing pavement analysis program. The new program can accurately predict the response of the pavement that consists of any number of layers/sublayers and any number of loads. The complexity of the tire-pavement loading configuration can be modeled easily as well. Practical pavement engineering problems have been analyzed and discussed in the report that take into consideration the modulus variation with depth as well as the complex tire-pavement loading configuration utilizing the newly developed MultiSmart3D program. The analyzed problems illustrated that powerful analytical tools, such as MultiSmart3D, are needed to study and predict the pavement response in practical and fast matters. For example, the predicted life time of the pavement can be increased or decreased by a factor more than two if the modulus of elasticity variation with depth is taken into consideration.
Format:

PDF
Funding:

134256
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8fc786d441558e81176621a1bd699879e25cca6b5f482c8d81721ccb3ff5a7a7
Download URL:

https://rosap.ntl.bts.gov/view/dot/37840/dot_37840_DS1.pdf
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An Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design

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