1992 NASA/ASEE Summer Faculty Fellowship Program

For the 28th consecutive year, a NASA/ASEE Summer Faculty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The program was conducted by the University of Alabama and MSFC during the period June 1, 1992 through August 7, 1992. Operated under the auspices of the American Society for Engineering Education, the MSFC program, was well as those at other centers, was sponsored by the Office of Educational Affairs, NASA Headquarters, Washington, DC. The basic objectives of the programs, which are the 29th year of operation nationally, are (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate and exchange ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA centers

Proceedings of the Belgian-Dutch IABSE Young Engineers Colloquium 2019:YEC2019

The proceedings contain 35 papers. The topics discussed include: fatigue monitoring of railway bridges by means of virtual sensing; steel-supported glazed atrium roof between two adjacent existing buildings; the Boekelose bridge: an innovative structure; case study of rail-bridge interaction of a large span railway viaduct in riga; probabilistic approach to evaluate fatigue safety status in steel railway bridges; buckling design approach for unstiffened curved plates in uniform shear; finite element modeling of residual welding stresses in an orthotropic steel bridge component; uniformly loaded tensegrity bridge design via morphological indicators method; tensile and shear resistance of bolted connectors in steel-FRP hybrid beams; and parametric analysis of rib distortion induced stress concentration at rib-to-crossbeam joint.</p

Welding Processes

Despite the wide availability of literature on welding processes, a need exists to regularly update the engineering community on advancements in joining techniques of similar and dissimilar materials, in their numerical modeling, as well as in their sensing and control. In response to InTech's request to provide undergraduate and graduate students, welding engineers, and researchers with updates on recent achievements in welding, a group of 34 authors and co-authors from 14 countries representing five continents have joined to co-author this book on welding processes, free of charge to the reader. This book is divided into four sections: Laser Welding; Numerical Modeling of Welding Processes; Sensing of Welding Processes; and General Topics in Welding

Numerical Simulations

This book will interest researchers, scientists, engineers and graduate students in many disciplines, who make use of mathematical modeling and computer simulation. Although it represents only a small sample of the research activity on numerical simulations, the book will certainly serve as a valuable tool for researchers interested in getting involved in this multidisciplinary field. It will be useful to encourage further experimental and theoretical researches in the above mentioned areas of numerical simulation

CLT-Steel Composite Floors for Sustainable Multi-Storey Construction

This thesis encompasses the investigation of a novel proposed construction system that pairs Cross-Laminated Timber (CLT) floor panels with steel-frame multi-storey construction. As a substitute for concrete floors, the promise of CLT lies in its reduced embodied carbon, and its lightness, which gives the promise of reduced material usage and a reduction in the environmental impact of a multi-storey building overall. In addition to clarifying the environmental benefit such a system provides, this thesis seeks to determine whether forming composite sections from the CLT panels and the steel beam, can lead to meaningful enhancements to the section stiffness in bending. Finite element analysis is applied for this task, necessitating first a methodology for modelling CLT to capture its relevant complexities as a material, and subsequently incorporation of the behaviour of the joints between structural elements in the proposed system, with the key characteristics of the materials and joint models validated against physical test data. Focusing predominantly on a slimfloor arrangement of panels and beams, the study provides the first evaluation of the effective width of CLT floor panels when acting compositely with steel beams, provides a prediction for composite action CLT panels and Asymmetric Steel Beams (ASBs) with a series of connectors, and identifies areas of development within the system that could bring about increased composite benefits. The outcomes of the study are that in a slimfloor arrangement with contemporary panels, beams and connectors, the composite enhancement is small but measurable, and that with changes and development to the system components, much larger composite enhancement effects could be generated