Browsing by Author/Contributor "Washer, Glenn A."
Now showing items 1-20 of 27
-
Advancements in evaluating reliability of nondestructive technologies for the detection of subsurface fracture damage in R.C. bridge decks
Sultan, Ali Abed (University of Missouri--Columbia, 2017)During the last few decades, many efforts have been made to assess the reliability of nondestructive evaluation (NDE) technologies used for the detection of subsurface damage in concrete bridge decks. During these efforts, ... -
Comparison of nondestructive testing technologies used for inspection of welded joints
Hotaki, Habiburahman (University of Missouri--Columbia, 2014)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The purpose of this research is to report on the comparison between different nondestructive test (NDT) methods applied for the detection of defects ... -
Condition assessment of carbon fiber composites using raman spectroscopy
Blum, Frank D. (University of Missouri--Columbia, 2009)The goal of this research is to examine the potential of Raman spectroscopy as a method of condition assessment for carbon fiber composite materials. Carbon fiber composites are used in high performance situations such as ... -
Condition assessment of Kevlar composite materials using Raman spectroscopy
Brooks, Thomas Michael Brinten (University of Missouri--Columbia, 2007)This thesis presents the results of an investigation of the Raman scattering effects of aging Kevlar composite strands. The goal of this research is to investigate the potential application of Raman spectroscopy as a ... -
Development of a portable total-stress measurement instrument
Fabian, Pedro Ruiz (University of Missouri--Columbia, 2016)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This research explores the application of ultrasonic stress measurement (USM) technologies to assess stress levels in gusset plates with the development ... -
The effect of visual inspection reliability on risk-based inspection
Hammed, Mohammad Mujtaba (University of Missouri--Columbia, 2020)Bridge inspection has come a long way from its inception as a component level practice following the Silver Bridge collapse in 1967 to the most recent advancement enacted by the Moving Ahead for Progress in the 21st Century ... -
Environmental effects on subsurface defect detection in concrete structures using infrared thermography
Bolleni, Naveen Kumar, 1985- (University of Missouri--Columbia, 2009)Deterioration of concrete due to corrosion of embedded steel reinforcing bars and prestressing strands represent a significant challenge for inspection and maintenance engineers. Cracking, delaminations and spalling that ... -
Environmental effects on subsurface defect detection in concrete without solar load
Fenwick, Richard Graham (University of Missouri--Columbia, 2010)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This study investigated the application of infrared (IR) thermography for the detection of subsurface damage in concrete. The deterioration of concrete ... -
Evaluating the variables that impact ultrasonic testing
Looten, Daniel Wayne (University of Missouri--Columbia, 2014)The goal of this research was to improve the quality control process for steel fabrication to improve the reliability, safety and quality of welded steel components. The objectives of this project were to explore the ... -
Examination of effects of ultraviolet radiation and hydrolysis on Kevlar-49 using Raman spectroscopy [abstract]
Knaus, Joseph; Washer, Glenn A. (University of Missouri--Columbia. Office of Undergraduate Research, 2007)The effects of environmental degradation on polymer matrix composites is an area of concern for researchers and engineers, as these materials are subjected to high stress environments. As a result of this, a need for ... -
Experimental assessment of advanced thermal imaging for detecting voids in ducts
Dawson, James (University of Missouri--Columbia, 2017)This research will evaluate the ability of a transient based Infrared Thermography (IRT) technology called the Infrared Ultra Time Domain (IR-UTD) system to detect defects in Post Tensioned (PT) ducts. In recent years, ... -
Experimental assessment of advanced thermal imaging for detecting voids in ducts
Dawson, James (University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This research will evaluate the ability of a transient based Infrared Thermography (IRT) technology called the Infrared Ultra Time Domain (IR-UTD) ... -
Further development of printable moire interferometer for evaluating stress concentrations at bolt holes [abstract]
Obermark, Chris; Washer, Glenn A. (University of Missouri--Columbia. Office of Undergraduate Research, 2007)The goal of this project is to develop and demonstrate an interferometry system that can be used to visualize the stress concentrations at bolt holes and cracks. Part of the project, is a study of the existing literature ... -
Guideline for implementing quality control and quality assurance for bridge inspection
Alexander, Adam Ross (University of Missouri--Columbia, 2009)Structurally deficient bridges are becoming more and more prevalent. The need to identify and correct these deficiencies is becoming increasingly apparent. This task is assigned to bridge inspections. With such a critical ... -
Health monitoring of civil structures [abstract]
Masterson, Mary Kathryn; Washer, Glenn A. (University of Missouri--Columbia. Office of Undergraduate Research, 2007)The project will develop health monitoring technologies for civil structures. Specifically, precision tiltmeters will be used to monitor the long term behavior of the columns. A wireless data acquisition system will be ... -
Long-term sensing system for bridge piers
Masterson, Mary Kathryn (University of Missouri--Columbia, 2009)Structural instability of bridge piers resulting from scour or other natural hazards can lead to bridge collapse. As a result, a method of monitoring bridge piers is needed to evaluate long-term changes in structural ... -
Modeling of environmental effects on thermal detection of subsurface damage for concrete bridges
Rumbayan, Rilya (University of Missouri--Columbia, 2013)This study developed a numerical model to predict thermal contrasts for subsurface delaminations based on a given set of environmental conditions. The finite element method (FEM) was used to perform 3-D, transient heat ... -
Nondestructive evaluation for hybrid-composite girder bridges
Schmidt, Justin John (University of Missouri--Columbia, 2013)This thesis will describe the efforts to develop quality control tools for the fabrication and construction of Hybrid Composite Beams (HCBs), a relatively new bridge technology currently being evaluated by the Missouri ... -
Optimization of electromagnetic acoustic transducers for nondestructive evaluation of concrete structures
Penamakuru, Siva Krishna Chaitanya (University of Missouri--Columbia, 2008)There are more than 130,000 prestressed concrete bridges in the United States with about 37,000 bridges being more than 30 years old. Prestressing steel strands are an important construction element used in these bridges ... -
Reliability-based methodology for bridge inspection planning
Applebury, Christopher Ryan (University of Missouri--Columbia, 2011)This research program was created with the goal of improving bridge safety and reliability while also improving the allocation of bridge inspection resources. The research reported herein was completed as a part of a larger ...