Estudio in vitro de la comparación de la resistencia a la tracción de estructuras de Ni Cr soldadas por láser y soplete según ancho y tipo de corte

Introducción: Las aleaciones metálicas siguen siendo ampliamente utilizadas en nuestro medio por su costo y buena resistencia estructural; el corte y la soldadura son técnicas utilizadas para mejorar el asentamiento y el ajuste pasivo por lo que es necesario estudiar la implicancia del espacio a soldar y el tipo de corte. Mediante el presente portafolio se analizó las estrategias de un curso a través del desarrollo del silabo, el análisis estructurado de un estudio y un proyecto de investigación. Desarrollo temático: Se desarrolló un sílabo, un análisis crítico de literatura y un proyecto de investigación in vitro de la comparación de la resistencia a la tracción de barras de Ni Cr soldadas por láser y soplete con diferente ancho y tipo de corte. Conclusiones: El desarrollo de los trabajos anteriormente mencionados permitirá a través del sílabo tener una herramienta que facilitará el aprendizaje de los alumnos y el proceso de enseñanza, el análisis del estudio de revisión nos permite evaluar y verificar la calidad del artículo y su contenido, y finalmente el proyecto de investigación nos permitirá elegir el tipo de corte y espacio de seccionamiento según el tipo de soldadura ya sea por soplete o láser.Introduction: Metallic alloys continue to be widely used in our environment due to their cost and good structural resistance; Cutting and welding are techniques used to improve seating and passive adjustment, so it is necessary to study the implications of the space to be welded and the type of cut. Through this portfolio, the strategies of a course were analyzed through the development of the syllabus, the structured analysis of a study and a research project. Thematic development: A syllabus, a critical analysis of literature and an in vitro research project were developed to compare the tensile strength of Ni Cr bars welded by laser and torch with different width and type of cut. Conclusions: The development of the aforementioned works will allow, through the syllabus, to have a tool that will facilitate student learning and the teaching process, the analysis of the review study allows us to evaluate and verify the quality of the article and its content, and finally the research project will allow us to choose the type of cut and sectioning space according to the type of welding, either by torch or laser

Structural Framework for Flight: NASA's Role in Development of Advanced Composite Materials for Aircraft and Space Structures

This serves as a source of collated information on Composite Research over the past four decades at NASA Langley Research Center, and is a key reference for readers wishing to grasp the underlying principles and challenges associated with developing and applying advanced composite materials to new aerospace vehicle concepts. Second, it identifies the major obstacles encountered in developing and applying composites on advanced flight vehicles, as well as lessons learned in overcoming these obstacles. Third, it points out current barriers and challenges to further application of composites on future vehicles. This is extremely valuable for steering research in the future, when new breakthroughs in materials or processing science may eliminate/minimize some of the barriers that have traditionally blocked the expanded application of composite to new structural or revolutionary vehicle concepts. Finally, a review of past work and identification of future challenges will hopefully inspire new research opportunities and development of revolutionary materials and structural concepts to revolutionize future flight vehicles

1996 Laboratory directed research and development annual report

This report summarizes progress from the Laboratory Directed Research and Development (LDRD) program during fiscal year 1996. In addition to a programmatic and financial overview, the report includes progress reports from 259 individual R&D projects in seventeen categories. The general areas of research include: engineered processes and materials; computational and information sciences; microelectronics and photonics; engineering sciences; pulsed power; advanced manufacturing technologies; biomedical engineering; energy and environmental science and technology; advanced information technologies; counterproliferation; advanced transportation; national security technology; electronics technologies; idea exploration and exploitation; production; and science at the interfaces - engineering with atoms

Structural Framework for Flight I: NASAs Role in Development of Advanced Composite Materials for Aircraft and Space Structures

This monograph is organized to look at: the successful application of composites on aircraft and space launch vehicles, the role of NASA in enabling these applications for each different class of flight vehicles, and a discussion of the major advancements made in discipline areas of research. In each section, key personnel and selected references are included. These references are intended to provide additional information for technical specialists and others who desire a more in-depth discussion of the contributions. Also in each section, lessons learned and future challenges are highlighted to help guide technical personnel either in the conduct or management of current and future research projects related to advanced composite materials

New York State Energy Research and Development Authority. Research Projects` Update Project Status as of March 31, 1997

This report provides an update of the New York State Energy Research and Development Authority (NYSERDA) program. The NYSERDA research and development program has five major areas: industry, buildings, energy resources, transportation, and environment. NYSERDA organizes projects within these five major areas based on energy use and supply, and end-use sectors. Therefore, issues such as waste management, energy products and renewable energy technologies are addressed in several areas of the program. The project descriptions presented are organized within the five program areas. Descriptions of projects completed between the period April 1, 1996, and March 31, 1997, including technology-transfer activities, are at the end of each subprogram section