Identification of pavement material properties using vibration measurements

As most of the roads and highways in developed countries have been built by now, the focus of research has shifted from construction to maintenance and design of new types of pavements. This brings attention on finding the material properties of the pavements. In this paper, a measurement and identification procedure based on an optical measurement system (a Scanning Laser Doppler Vibrometer or SLDV) is proposed. Tests are conducted on different types of pavements and using an inverse modeling approach different material properties of the pavements (i.e. Young's modulus E, Poisson ratio. and damping coefficients) are estimated. As a first step, optical vibration measurements are used as an input of a frequency domain model parameter estimation method (the Polymax estimator). Secondly, the properties of the materials are estimated by minimizing the distance of the estimated parameters with values calculated from a finite element model (FEM).

ISBN:978-90-73802-94-0

Publication year:2016

Keywords:P1 Proceeding

BOF-keylabel:yes

Authors from:Higher Education

Accessibility:Closed