Maina, JWOzawa, YMatsui, K2013-02-192013-02-192012-10Maina, JW, Ozawa, Y and Matsui, K. 2012. Linear elastic analysis of pavement structure under non-circular loading. Road Materials and Pavement Design, vol. 13(3), pp 403-4211468-0629http://www.tandfonline.com/doi/pdf/10.1080/14680629.2012.705419http://hdl.handle.net/10204/6562Copyright: 2012 Taylor and Francis. This is an ABSTRACT ONLY. The definitive version s published in Road Materials and Pavement Design, vol. 13(3), pp 403-421. http://dx.doi.org/10.1080/14680629.2012.705419Conventional methods for road and airport pavement analyses, such as BISAR and GAMES, were developed based on a cylindrical coordinate system. Because of the loading symmetry due to the assumption that a circular uniformly distributed load is acting on the pavement surface, it was useful to use a cylindrical coordinate system. However, depending on the magnitude of the tire load, several research reports on tire–pavement contact stresses have shown that the contact patch is predominantly rectangular and not circular in shape. Based on this observation and the fact that it may be difficult for most multi-layer linear elastic software packages to make use of the field measured tire–pavement contact stresses, which are rectangular in shape, this paper presents the development of a method for pavement structural analysis considering both uniform and non-uniform loads acting over a rectangular area. In this approach, three components of displacements, which satisfy Navier’s equations, are expressed using Neuber-Papkovich functions.Worked examples for vertical and horizontal loads acting over rectangular area are presented in this paper. In order to verify the validity of the solutions obtained, the results are compared with those obtained from freeware GAMES software, which analyses loads acting over a circular area and is widely used in Japan and South Africa and a number of institutions in Australia, Europe and US.enRoad pavement analysisAirport pavement analysisTire loadsPavement analysisLinear analysisNon-circular loadsNon-uniform loadsDisplacement equationsBoundary conditionsMultilayered systemsInverse Fourier TransformMultiple loadingNumerical analysisAxle loadsArticleMaina, J., Ozawa, Y., & Matsui, K. (2012). Linear elastic analysis of pavement structure under non-circular loading. http://hdl.handle.net/10204/6562Maina, JW, Y Ozawa, and K Matsui "Linear elastic analysis of pavement structure under non-circular loading." (2012) http://hdl.handle.net/10204/6562Maina J, Ozawa Y, Matsui K. Linear elastic analysis of pavement structure under non-circular loading. 2012; http://hdl.handle.net/10204/6562.TY - Article AU - Maina, JW AU - Ozawa, Y AU - Matsui, K AB - Conventional methods for road and airport pavement analyses, such as BISAR and GAMES, were developed based on a cylindrical coordinate system. Because of the loading symmetry due to the assumption that a circular uniformly distributed load is acting on the pavement surface, it was useful to use a cylindrical coordinate system. However, depending on the magnitude of the tire load, several research reports on tire–pavement contact stresses have shown that the contact patch is predominantly rectangular and not circular in shape. Based on this observation and the fact that it may be difficult for most multi-layer linear elastic software packages to make use of the field measured tire–pavement contact stresses, which are rectangular in shape, this paper presents the development of a method for pavement structural analysis considering both uniform and non-uniform loads acting over a rectangular area. In this approach, three components of displacements, which satisfy Navier’s equations, are expressed using Neuber-Papkovich functions.Worked examples for vertical and horizontal loads acting over rectangular area are presented in this paper. In order to verify the validity of the solutions obtained, the results are compared with those obtained from freeware GAMES software, which analyses loads acting over a circular area and is widely used in Japan and South Africa and a number of institutions in Australia, Europe and US. DA - 2012-10 DB - ResearchSpace DP - CSIR KW - Road pavement analysis KW - Airport pavement analysis KW - Tire loads KW - Pavement analysis KW - Linear analysis KW - Non-circular loads KW - Non-uniform loads KW - Displacement equations KW - Boundary conditions KW - Multilayered systems KW - Inverse Fourier Transform KW - Multiple loading KW - Numerical analysis KW - Axle loads LK - https://researchspace.csir.co.za PY - 2012 SM - 1468-0629 T1 - Linear elastic analysis of pavement structure under non-circular loading TI - Linear elastic analysis of pavement structure under non-circular loading UR - http://hdl.handle.net/10204/6562 ER -