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Simulation of vehicular impacts with safety-shaped barrier
(1987)
In the research described here, a vehicle/barrier crush model was developed and combined with a vehicle model to simulate impacts with the concrete safety-shaped barriers (CSSB). The crush model accounts for the effects ...
Mechanical characterization of nonlinear laminated composites with traverse crack growth
(1992)
A work potential based analysis was used to model damage related material nonlinearities in graphite-epoxy laminates. Two work potentials were incorporated. One potential was related to sub-ply damage, such as shear banding ...
An interaction theory for multi-layered bonded composite beam systems with shear deformation effects
(1987)
An approximate partial interaction theory is presented for the analysis of multi-layered composite beams connected by means of adhesion. The formulation includes the effects of elastic slip, differential deflection, ...
Effects of variable force coefficients Cd and Cm on the dynamic response of a Tension-Leg Platform
(1985)
The Morison hydrodynamic force prediction equation is commonly used to compute the wave forces on offshore structures composed of "small members". The computations are carried out assuming that the force coefficients, C[d] ...
A distributed dynamic watershed model
(1986)
A distributed watershed model was developed to mathematically simulate routing overland and channel flow for a single-event storm. The watersheds used in the study were subdivided into rectangular grid elements. All ...
Estimation of percolation from landfill final covers based on extreme climatic events
(1986)
Landfill waste cells are capped with a final cover of vegetated topsoil. The impact of extreme climatic events on percolation of water from landfill final covers is currently not considered in landfill cover design. Covers ...
A design and synthesis of a multilevel freeway control system and a study of its associated operational control plan
This dissertation considers the mathematical modeling and implementation of a multilevel freeway control system together with a consideration of some operational alternatives and associated consequences of real-time freeway ...
Numerical prediction of pavement distress with geotechnical constitutive laws
(1993)
The structural analysis and the selection of the performance models are the two most important steps in pavement performance analysis and they significantly affect the prediction of pavement distress. The nonlinear elasticity ...
A comparison of several creep constitutive theories for the prediction of elastic-plastic-creep response and their application to finite element analysis
(1986)
This dissertation begins with a review of the bases for creep constitutive equations. Next, physical metallurgical concepts are used to examine the creep process in simple and complex stress histories. Since, there are ...