Search
Now showing items 81-90 of 116
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 ...
Viscoelastic fracture characterization of polymeric solids
(1993)
Almost all engineering materials exhibit creep and relaxation behavior. The observed magnitude depends on temperature, stress level and loading duration. Some polymers are further influenced by moisture contents as well. ...
Pipe-sediment interaction of unburied marine pipelines on soft marine sediments
(1993)
Unburied submarine pipelines resting on soft marine sediments tend to embed themselves into the sediment when subjected to periodic hydrodynamic loading, provided a small amplitude of lateral movement of the pipe is allowed. ...
A qualitative study of the stress-strain behavior of a cohesionless material within the framework of a second order cauchy elastic constitutive relation
(1973)
The second order Cauchy elastic constitutive relation was shown to adequately model the qualitative nonlinear stress-strain loading behavior of a dry, dense, cohesionless sand for drained conditions and rate independent, ...
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 ...
Flexural fatigue durability of selected unreinforced structural lightweight concretes
(1967)
Synthetic lightweight aggregates are being extensively used in the construction of highway pavements, bridges, and buildings. For its efficient use in such structures, an evaluation of the fatigue durability of lightweight ...
A study of fundamental engineering characteristics of recent and Pleistocene marine sediments of Sabine Pass Area, Gulf of Mexico
(1967)
A study of the consolidation characteristics of the marine sediments from the Sabine Pass area of the continental shelf of northern Gulf of Mexico is presented herein. The laboratory consolidation tests were carried out ...
The development of a procedure for estimating statewide air passenger travel demand
(1971)
This research is addressed to the development of a technique for estimating air passenger travel demands. Techniques previously used for estimating air passenger travel demands are applicable for planning at the national ...
A study of dynamic load-deformation and damping properties of sands concerned with a pile-soil system
(1968)
Despite various philosophies which have been proposed, our knowledge of the behavior of piled-foundation is still far from complete. This is partly due to the fact that the pile-soil interaction is markedly complex, ...
Description and evaluation of controlled freeway merging
(1968)
This dissertation involves the mathematical modeling of the operation of a freeway entrance ramp merging control system. A renewal process was utilized to develop expressions for the statistical moments of the time a vehicle ...