Flügge's Conjecture: Dissipation- versus Deflection-Induced Pavement–Vehicle Interactions

Arghavan Louhghalam, Mehdi Akbarian, Franz-Josef Ulm
2014 Journal of engineering mechanics  
CITATIONS 7 READS 23 3 authors, including: Some of the authors of this publication are also working on these related projects: A computational framework for the analysis of rain-induced erosion in wind turbine blades View project ABSTRACT 4 The dissipation occurring below a moving tire in steady-state conditions in contact with 5 a viscoelastic pavement is expressed using two different reference frames, a fixed observer 6 attached to the pavement, and a moving observer attached to the
more » ... ire contact sur-7 face. The first approach is commonly referred to as 'dissipation-induced pavement-vehicle-8 interaction (PVI); the second as 'deflection-induced' PVI. Based on the principle of frame-9 independence, it is shown that both approaches are strictly equal, from a thermodynamics 10 point of view, and thus predict the same amount of dissipated energy. This equivalence 11 is illustrated through application to two pavement systems, a viscoelastic beam and a vis-12 coelastic plate both resting on an elastic foundation. The amount of dissipated energy in 13 the pavement structure needs to be supplied by the vehicle to maintain constant speed; thus 14 contributing to the rolling resistance, associated excess fuel consumption, and greenhouse 15 1 gas emissions. The model here proposed can be used to quantify the dissipated energy, and 16 contribute to the development of engineering methods for the sustainable design of pave-17 ments. 18
doi:10.1061/(asce)em.1943-7889.0000754 fatcat:spjohgreindwpnnpdrrh4nuidy