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%0 Thesis
%A Feng, Dong
%T Development of numerical models and related dynamic response studies in pavement engineering
%I Rheinisch-Westfälische Technische Hochschule Aachen
%V Dissertation
%C Aachen
%M RWTH-2026-00403
%P 1 Online-Ressource : Illustrationen
%D 2026
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
%Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2026
%X This dissertation develops a coherent suite of numerical modeling components for pavement engineering that spans particle, mesoscale, and equipment–soil representations, with the shared goal of improving model fidelity and interpretability in computational studies relevant to construction processes. The work advances (i) adhesive contact modeling for discrete element analyses, (ii) virtual aggregate generation with independently controlled morphology for mesoscale mixture models, and (iii) dynamic modeling of the compactor–soil system with explicit treatment of mechanical inertia and delayed feedback control. Each development is verified against targeted benchmarks before being exercised in application-style simulations, ensuring that the resulting insights rest on demonstrably stable and transparent numerical formulations. At the particle scale, a Johnson–Kendall–Roberts (JKR)–based contact formulation is introduced in which the surface energy parameter is prescribed as a function of time, enabling controlled within-run evolution while preserving the analytical structure of the classical contact model. Canonical tests (ball–ball pull-off and gravity loading) confirm force–displacement behavior and energy conservation, after which the contact model is applied to pre-compaction and rotating drum scenarios. Relative to a constant parameter baseline, compaction impulses are increased by 15.57
%F PUB:(DE-HGF)11
%9 Dissertation / PhD Thesis
%R 10.18154/RWTH-2026-00403
%U https://publications.rwth-aachen.de/record/1024914