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A Multilayer Analytical Model and Experimental Verification for Tunnel Lining…
The thermal-mechanical behavior of tunnel lining segment plays a key role in governing its fire protection design. Existing models are mainly developed for the analysis nonlinear and non-elastic behavior of segment under fire, however the complexity of the model impede their application in engineering. In this study, a multilayer analytical model is proposed to describe the behavior of segmen…
Objectives and Efforts of the American National Standards Institute D-20 Comm…
Selected papers from AASHTO Proceedings; 1975 sixty-first annual meeting proceedings
Analysis of mineral fillers and mastic used in stone matrix asphalt
Asphalt Paving technology 1995 Journal of The Association of Asphalt paving technologists, Volume 64
DEM models of idealized asphalt mixtures
The stiffness behavior of an idealized asphalt mixture at the different air void levels was investigated in this paper. The asphalt mixture was modeled with the discrete element modeling (DEM) approach by randomly generated air voids in two dimensions (2D) and three dimensions (3D). Air voids were calculated within the DEM model to meet the specific air void level (i.e. 4%, and 10%). Sixteen di…
Two dimensional and three discrete element models for HMA
Hot Mix Asphalt (HMA) is a composite material that consists of mineral aggregates, asphalt binders and air voids. A Discrete Element Model (DEM) of the HMA microstructure was developed to study the stiffness behavior in both two dimensions (2D) and three dimensions (3D). Image analysis techniques were used to capture the HMA microstructure. The HMA microstructure was divided into two phases: ag…
Structural Health Monitoring of Long-Span Suspension Bridges
Long span suspension bridges cost billions. In recent decades, structural health monitoring systems have been developed to measure the loading environment and responses of these bridges in order to assess serviceability and safety while tracking the symptoms of operational incidents and potential damage. This helps ensure the bridge functions properly during a long service life and guards again…
