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Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design.
| 题名： | Exploratory Study on Functionally Graded Materials with Applications to Multilayered Pavement Design. |
| 作者： | pan, e. alkasawneh, w. chen, e. |
| 关键词： | road materials, durability, multilayered elastic analysis, loads(forces), resilient modulus, moisture content, creep, finite element method, discrete element method, seasonal variations, fatigue tests, rutting |
| 摘要： | 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 layer 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 programs. The new program can predict accurately and efficiently the response of the pavement consisted of any number of layers/sub layers and any number of loads. The complexity of the tire-pavement loading configuration can be modeled easily as well. / Supplementary Notes: Sponsored by Ohio Dept. of Transportation, Columbus. and Federal Highway Administration, Columbus, OH. Ohio Div. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0725；152p |
| 报告类型： | 科技报告 |
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