Influence of seed layer moduli on FEM based modulus backcalculation results

Transportation Research Record, 2006

2010

Transportation Research Record: Journal of the Transportation Research Board, 2004

A dynamic time domain method was developed to backcalculate the layer moduli, damping ratios, and thicknesses of asphalt pavements from dynamic falling weight deflectometer test data. The method uses the SAPSI program as a forward routine and a Newton-Raphson method for the backcalculation. The advantage of the time domain approach is that SAPSI can match selected features of the measured time histories directly, and inaccurate measurements at the ends of histories can be ignored. The peak deflections and the time lag between the peak of the load and the peak of the deflections at different sensors are matched. The Newton algorithm in MICHBACK is adopted to perform the backcalculation. The new algorithm is capable of backcalculating the moduli, damping ratios, and thicknesses of three-layer flexible pavements reasonably well. Backcalculations based on synthetic time histories generated using SAPSI show excellent stability and accuracy. Backcalculation using measured time histories y...

Sicilia Archeologica,, 2022

Sicilia Archeologica, 113 2022, 296 pp. Brossura, 21,5 x 24 cm ISBN: 9788891328038 ISSN: 0037-4571

Description ‘It belongs to the weakness of our time not to be able to bear the greatness, the immensity of the claims made by the human spirit, to feel crushed before them, and to flee from them faint-hearted.’ (Hegel’s Lectures on the History of Philosophy, v2, p. 10) Is it becoming more obvious today that the thinkers of the post-Hegelian era were/are not ‘able to bear the greatness, the immensity of the claims made by the human spirit’? Is our era the era of the ‘faint-hearted’ philosophy? Celebrating 200 years since the publication of The Phenomenology of Spirit this volume addresses these questions through a renewed encounter with Hegel’s thought. This book includes contributions from: H. S. Harris, John W. Burbidge, Paul Redding, Angelica Nuzzo, David Gray Carlson, Simon Lumsden, Karin de Boer, David Rose, Andrew Haas, Toula Nicolacopoulos, George Vassilacopoulos, Jorge Armando Reyes Escobar, Maria J. Binetti, Wendell Kisner, Paul Ashton and Robert Sinnerbrink. Authors, editors and contributors Paul Ashton NMIT and LaTrobe University Toula Nicolacopoulos LaTrobe University George Vassilacopoulos LaTrobe University

dalam aspek ekonomi, politik, sosial, budaya, agama, pendidikan dan lain-lain.

2003