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Forensic engineering --- Forensic engineering. --- Structural failures --- Structural failures --- Investigation --- Investigation.
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Proceedings of the Seventh Congress on Forensic Engineering, held in Miami, Florida, November 15-18, 2015. Sponsored by the Forensic Engineering Division of ASCE. This collections contains 89 peer-reviewed papers that provide a forum for the development of practices and procedures to advance forensic engineering and provide guidelines for conducting failure investigations and ethical conduct. Topics include: performance of materials; building envelopes; special structures; failures during construction; hurricanes and other natural disasters; and professional practice. This proceedings will be valuable to practitioners and researchers working in all areas of forensic engineering.
Forensic engineering --- Structural failures --- Investigation
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This report describes 3-dimensional (3D) digital image correlation to measure the 3D shape, displacement, and in-plane strain field, during testing of gusset plate structural connections. Twelve full-scale bridge gusset plate connections of various geometries and boundary conditions were tested at the the Federal Highway Administration (FHWA) Turner-Fairbank Highway Research Center (Ocel et al., 2012). These experiments are part of the verification of numerical models as part of NCHRP Project 12-84 Guidelines for the Load and Resistance Factor Design and Rating of Riveted and Bolted Gusset Plate Connections for Steel Bridge. The measurements described here are in regards to the tests performed to failure (i.e., maximum load carrying capacity of the connection). During each of the twelve tests to failure, a series (typically about 150) of image pairs were taken for subsequent digital image correlation analysis. Although all of the image pairs were processed, only a very small portion of the results are presented here. It is intended to give general access to the overall data set for use by other researchers. Overall the measurements, showed reasonable uncertainties on the order of 150 ?m/m of maximum in-plane shear strain, and the measured out of plane initial shapes of the plates typically matched qualitative inspections of the connections. The layout, calibration, and measurement procedure associated with the digital image correlation system are described in detail to aid in understanding of the results. The results shown here include a sample of the measured and derived variables for one experiment at two conditions to inform the reader of the type of data that is available. The results also include an abbreviated set of results that show the evolution of the out of plane shape and maximum shear strain field at four points in loading from the initial condition to failure.
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This report describes 3-dimensional (3D) digital image correlation to measure the 3D shape, displacement, and in-plane strain field, during testing of gusset plate structural connections. Twelve full-scale bridge gusset plate connections of various geometries and boundary conditions were tested at the the Federal Highway Administration (FHWA) Turner-Fairbank Highway Research Center (Ocel et al., 2012). These experiments are part of the verification of numerical models as part of NCHRP Project 12-84 Guidelines for the Load and Resistance Factor Design and Rating of Riveted and Bolted Gusset Plate Connections for Steel Bridge. The measurements described here are in regards to the tests performed to failure (i.e., maximum load carrying capacity of the connection). During each of the twelve tests to failure, a series (typically about 150) of image pairs were taken for subsequent digital image correlation analysis. Although all of the image pairs were processed, only a very small portion of the results are presented here. It is intended to give general access to the overall data set for use by other researchers. Overall the measurements, showed reasonable uncertainties on the order of 150 ?m/m of maximum in-plane shear strain, and the measured out of plane initial shapes of the plates typically matched qualitative inspections of the connections. The layout, calibration, and measurement procedure associated with the digital image correlation system are described in detail to aid in understanding of the results. The results shown here include a sample of the measured and derived variables for one experiment at two conditions to inform the reader of the type of data that is available. The results also include an abbreviated set of results that show the evolution of the out of plane shape and maximum shear strain field at four points in loading from the initial condition to failure.
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The present work comprises selected peer-reviewed papers from the International Mechanical Properties and Structural Materials Conference (IMPSMC 2012), held on the 17 to 19 th August 2012, in Shenyang, Liaoning, China. The 128 selected papers are grouped into two chapters: 1: Mechanical Engineering; 2: Materials Engineering. They offer an up-to-date view of the field.
Materials --- Structural failures --- Materials science --- Mechanical properties
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"Steel Structures: Considerations to Reduce Failures due to Instability provides a detailed overview of the issues associated with the instability of steel structures"--
Building, Iron and steel. --- Structural failures --- Prevention.
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Finite element method. --- Girders. --- Structural failures.
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"The book is about bridging the huge gaps between what engineers know, what they do and why things go wrong. It puts engineering into a wider perspective so readers can see how it relates to other disciplines - especially science and technology. Many intellectuals have dismissed engineering as 'applied science', but this book shows how wrong it is to do so - engineers apply science, but their purpose is quite different. It takes the reader on a learning journey of reflections on the gaps between theory and practice in professional life - not just in engineering but across all disciplines. The learning is summarised through 20 learning points or lessons, each one placed in context. Some of the important lessons are about learning from failure, joining-up theory and practice, understanding process, classifying uncertainty, managing risks, finding resilience, thinking systems to improve performance and nurturing practical wisdom"--
Failure analysis (Engineering) --- Risk assessment --- Structural failures