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Seismic response of wharf structures supported in liquefiable soil
(Massachusetts Institute of Technology, 2013)
This research analyzes the vulnerability of wharf structures supported on loose granular waterfront fills that are susceptible to liquefaction during seismic events and considers the effectiveness of pre-fabricated Vertical ...
The mechanical behavior of heavily overconsolidated resedimented Boston Blue Clay
(Massachusetts Institute of Technology, 2013)
Geotechnical engineers encounter some of the most challenging problems in heavily overconsolidated soils. Clays under this condition originated in nature or man-made construction. This thesis investigates the mechanical ...
Effects of droplet size on intrusion of sub-surface oil spills
(Massachusetts Institute of Technology, 2013)
This thesis explores the effects of droplet size on droplet intrusion in sub-surface oil spills. Laboratory experiments were performed where glass beads of various sizes, which serve to simulate oil droplets in deepsea oil ...
Grinding of cement clinkers : linking multi-scale fracture properties to system chemistry, mineralogy and microstructure
(Massachusetts Institute of Technology, 2013)
Growing environmental concerns encourage the cement industry to improve its environmental performance, which in turn renews the interest in clinker grinding efficiency. Current knowledge on clinker grinding was built over ...
Numerical simulation of ground movements and structural forces in lining for Earth Pressure Balance (EPB) tunneling in clay
(Massachusetts Institute of Technology, 2013)
This thesis describes the development of a 3D finite element model for representing mechanized tunnel construction using an Earth Pressure Balance (EPB) machine in clay. The model uses the commercial FE code, Plaxis 3D, ...
Optimization of hydrophobic meshes for oil spill recovery
(Massachusetts Institute of Technology, 2013)
Widespread use of petrochemicals often leads to accidental releases in aquatic environments, occasionally with disastrous results. Recent advances in the understanding of selectively wetting surfaces have led to the ...
A study of the molecular mechanics of wood cell walls
(Massachusetts Institute of Technology, 2013)
Wood is the original structural material, developed by nature to support tall plants. Every advantageous feature of wood as used in artificial structures is rooted in the plant's evolved capability to withstand the conditions ...
Detection of defects in FRP-reinforced concrete with the acoustic-laser vibrometry method
(Massachusetts Institute of Technology, 2013)
Fiber-reinforced polymer (FRP) strengthening and retrofitting of concrete structural elements has become increasingly popular for civil infrastructure systems. When defects occur in FRP-reinforced concrete elements at the ...
Linear elastic fracture mechanics in anisotropic solids : application to fluid-driven crack propagation
(Massachusetts Institute of Technology, 2013)
Fracture mechanics is a field of continuum mechanics with the objective to predict how cracks initiate and propagate in solids. It has a wide domain of application. While aerospace engineers want to make sure a defect in ...
Design of a flexible containment system for deep ocean oil spills
(Massachusetts Institute of Technology, 2013)
BP needed almost 3 months to cap the Deepwater Horizon spill; improved response techniques are needed for the future. This work presents the design and deployment plan for a new type of containment system that captures the ...