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 10 of 10 for “"beam on elastic foundation"”.
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Characterization of a Pressure Sensitive Adhesive (PSA) for Mechanical Design
… and applying stress models, collecting visco-elastic material properties, and presenting the material data for use in adhesive joint designs. There are a number of models/theories that can be applied to the design of Pressure Sensitive Adhesive (PSA) joints. Unfortunately, few design engineers …
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Computer aided analyses of symmetrically loaded thin cylindrical shell using transfer matrix method
… shells as a structural form have made important contribution to the development of several branches of engineering, e.g., chemical, power, structural engineering, etc. The aim of this research is to analyze symmetrically loaded thin cylindrical shell structures using transfer matrix method. A …
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Simulated Response of Degrading Hysteretic Joints With Slack Behavior
… of predicting the load-displacement relationship up to and at failure of multiple-bolt joints in timber of various configurations. The model is not tied to a single input function and bolt holes are permitted to be drilled oversize resulting in a slack system. The model consists of five …
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Quantitative sustainability assessment of pavement-vehicle interaction : from bench-top experiments to integrated road network analysis
The sustainable development of our nation's roadway system requires quantitative means to link infrastructure performance to lifecycle energy use and greenhouse gas (GHG) emissions. Beside surface texture and roughness-induced Pavement-Vehicle Interactions (PVI), we herein recognize that the …
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Modelling Transition Zones and Optimal Design Adjoining Tunnels and Bridges
Track transitions, such as bridge approaches, road crossings, and shifts from slab track to ballasted track, are known to be locations where track degradation accelerates due to dynamic and high impact forces. As a result, there is a higher differential settlement, which can cause an abrupt change …
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Rectification of 2-D to 3-D Finite Element Analysis in Buried Concrete Arches Under Discrete Loading
<p>Construction of tunnels and small- to medium-span bridges is a $12 billion per year industry in the United States, with a significant portion going into buried arch structures. Notwithstanding such expenditure, modern arch design and construction, in many cases, is highly conservative. This is …
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Using far-field measurements for determining mixed-mode interactions at interfaces
Traction–separation relations (TSR) can be used to represent the interactions at a bimaterial interface during fracture and adhesion. The goal of this work is to develop a direct method to extract mixed-mode TSRs using only the far-field measurements. The first topic of the dissertation deals with …
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Effect of Pallet Deckboard Stiffness and Unit Load Factors on Corrugated Box Compression Strength
… are equally predominant in shipping, transportation and warehousing logistics. The interaction between these two components is complex and unexplored leaving industry to compensate with outdated component specific safety factors. Providing a focused exploration of the box and pallet interaction …
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Response of Pile-Supported T-Walls to Fill Loading and Flood Loading Based on Physical Model Studies and Numerical Analyses
Pile-supported T-walls, which are concrete floodwalls that are shaped like an inverted "T" and supported by batter piles, are commonly used by the United States Army Corps of Engineers (USACE) to protect low-lying portions of New Orleans and other areas. The design of a T-wall in southern Louisiana …
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Modal Analysis of a Discrete Tire Model and Tire Dynamic Response Rolling Over Short Wavelength Road Profiles
… represents a challenge due to the complex vibration characteristics that cause the tire's symmetry distortion and the natural frequencies' bifurcation phenomena. The modal parameters are usually extracted using a detailed finite element model. The main issue with full modal models (FEA, for …