Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Interface Bonding"”.
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Development of a testing approach for tack coat application rate at pavement layer interfaces
Pavement interlayer bonding is one of the critical factors that affect the pavement service life. In addition to difficulties in compaction, lack of interface bonding can lead to serious pavement deterioration including slippage cracking, de-bonding, and early fatigue cracking, all of which …
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Evaluation of bonding between ultra-thin portland cement concrete overlays and asphalt cement concrete
… These key elements include foundation support, interface bonding condition, portland cement concrete (PCC) thickness, synthetic fiber reinforcement usage, and joint spacing. The interface bonding condition is the most important of these elements because it enables the pavement to act as a …
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Nondestructive damage characterization of concrete and concrete-steel composites using contactless ultrasonic scanning
… to develop an NDE technique to characterize interface bonding conditions of concrete-steel composite structures, a contactless ultrasonic scanning approach using the attenuation characteristics of guided waves is developed. Based on an understanding of guided wave propagation in multi-layered …
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Evaluation of bond between pavement layers: fracture mechanics approach
Bonding between adjacent pavement layers is one of the most important factors affecting pavement service life. Poor bonding between adjacent layers of hot mix asphalt can lead to different types of distresses in pavement system such as slippage cracking, top-down cracking, premature fatigue …
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Optimization of in-situ tack coat application rate and installation
Interface bonding between pavement layers is a key factor affecting the performance of any pavement structure. Over the years, several studies have been performed to better understand bonding between pavement layers. The first phase of this study was a laboratory assessment, which analyzed …
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Modeling reflective cracking development in hot-mix asphalt overlays and quantification of control techniques
… with the modulus of base and subgrade layers. Interface bonding conditions, especially bonding strength, affected the development of reflective cracking. Lower interface bonding strength resulted in greater potential for developing reflective cracking. The study concluded that the sand mix …
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An improved backcalculation method to predict flexible pavement layers moduli and bonding condition between wearing course and base course.
… developed in this research can predict the interface condition between the wearing and the base courses in addition to the layer moduli, which can be considered an improvement to the existing procedures. A two stage database procedure has been used to predict the above parameters and to …
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Experimental investigations of solid-solid thermal interface conductance
Understanding thermal interface conductance is important for nanoscale systems where interfaces can play a critical role in heat transport. In this thesis, pump and probe transient thermoreflectance methods are used to measure the thermal interface conductance between solid materials. Two …
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A Hybrid Approach for Nonlinear Soil-Structure Interaction Analysis of Pile- Supported Bridges
… of linear elastic soil and rigid soil-pile interface bonding assumptions that have been used in substructure analysis. This thesis aims to develop numerical and analytical frameworks to (i) investigate seismic response of a representative bridge superstructure supported by a large-diameter …
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Role of sulfur in vibration spectra and bonding and electronic structure of GeSi surfaces and interfaces
… and electronic structure of surfaces and interfaces using germanium. Initially, we investigated the H2S and H2Opassivated germanium surfaces. A supercell approach is used with the local density (LDA), generalized gradient (GGA) approximations and van der Waals (vdW) interactions. The …
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Orienting structure to serve medical functions
… the same shear strength as the cartilage-bone interface. Bonding hydrogel to a titanium base that can in turn bond to bone could enable long-term fixation of the hydrogel, but current methods of forming bonds to hydrogels do not have the shear strength of the cartilage-bone interface. This …
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Processing Mechanics of Additive Friction Stir Deposition
… the AFSD tool, which impacts deformation bonding conditions at the interface, and suggest that temperature differences under the tool may be as high as 70℃. Several interface fracture experiments reveal a well-bonded center region, with high ductility and energy dissipation, and a poorly …
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Using high pressure to study thermal transport and phonon scattering mechanisms
… by phonons across and away from material interfaces. The heat flux per unit temperature drop across an interface is quantified by the interface thermal conductance. This conductance is difficult to study, as it is comprised of at least three components: bond stiffness at the interface, …
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Selective laser melting of Ti-35NB alloy: Processing, microstructure and properties
… of the role of undissolved Nb particles, Nb-rich interfaces, and Ti-Nb-based β phases on the mechanical performance. The nanoindentation mappings provide direct evidence of the contribution of the different phase responses to overall mechanical properties. The Nb particle segregation zones have …