Download or read book Dynamic Image Analysis of Granular Materials written by Magued Iskander and published by Springer Nature. This book was released on with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Image Analysis of Granular Materials written by Magued Iskander and published by Springer. This book was released on 2024-02-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the effectiveness of Dynamic Image Analysis (DIA) in granulometry studies of sand, and presents criteria for soil characterization using DIA, including test parameters, specimen size, efficacy in gap-graded soils, and its limitations. DIA is a modern experimental technique used to analyze and classify particulate materials based on their size, shape, and other morphological properties. This method employs a high-frame-rate camera to capture images of individual sand particles, which have been transported and separated using various techniques. DIA generates both particle size and shape information by analyzing thousands to millions of particles, providing a quantitative statistical description of grain size and shape distribution within the specimen. The manuscript also offers a comprehensive examination of 2D and 3D particle size and shape descriptors. It demonstrates that there is no correlation between size and shape parameters in many sands and that shape descriptors can be reduced to four independent parameters representing sand granulometry at different scales. Additionally, the use of DIA in exploring the depositional history of two complex calcareous sands is presented. The manuscript presents the properties of 30 representative sands, including size and shape parameters, and fits them to statistical distributions. The investigated soils encompass both natural and machine-sorted materials, particles with regular and irregular shapes, as well as siliceous and calcareous sands. Physical granulometry of sand particles is compared using 2D, 3D DIA, and micro-computed tomography (μCT). The work demonstrates that DIA offers significant advantages in terms of efficiency for 3D shape analysis while providing an adequate representation of particle sizes and shapes of most sands. Finally, the manuscript integrates classical geotechnical engineering with computer vision and artificial intelligence. Size and shape descriptors are utilized for sand classification through machine learning models. This work represents a crucial step toward the automatic machine classification of soils, potentially enabling on-site classification using smartphones equipped with high-resolution cameras.

Download or read book Evaluation of Dynamic Image Analysis for Characterizing Granular Soils written by Linzhu Li and published by . This book was released on 2020 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates the efficacy of dynamic image analysis (DIA) for determining particle size and shape distribution. The method employs a high-frame-rate camera to image individual particles of sand that have been transported and separated using a stream of pressurized air. DIA can generate both particle size and shape information and provides a quantitative statistical description of the grain size and shape distribution within the specimen. The feasibility, repeatability, and accuracy of DIA for routine analysis of particle size and shape distribution was investigated using 16 granular soils spanning a number of common sizes and shapes. Several particle shape descriptors were evaluated, including aspect ratio, convexity, and sphericity. The effect of a variety of test parameters including moisture content, sample weight, primary air pressure, and test duration were explored to determine the optimal specimen weight and equipment settings for DIA. Finally, the efficacy of DIA in resolving mixtures of fine and coarse sands was also explored. The method proved to be feasible, repeatable, and accurate for providing particle size distributions spanning four orders of magnitude, in terms of particle size. DIA offers a number of advantages; the method is quick, requires small specimen sizes, and provides quantitative information on approximately 3-4 % of the particles in the specimen.

Download or read book Quantifying the Fabric of Granular Materials written by Chun-Yi Kuo and published by . This book was released on 1995 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Mechanics of Arbitrarily Shaped Granular Materials written by Siqiang Wang and published by Springer Nature. This book was released on 2024-01-17 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on discrete element methods for arbitrarily shaped granular materials, including super-quadric models, spherical harmonic functions and level set methods, and numerical analysis of the flow characteristics of non-spherical granular materials. This book is used as a reference book for scientific researchers engaged in dynamic analysis of granular materials and optimal design of equipment structures in the fields of engineering mechanics, applied physics, mechanical engineering, and chemical engineering, as well as for graduate students or senior undergraduates of related majors in institutions of higher education.

Download or read book Particle Size Analysis Image Analysis Methods Dynamic Image Analysis Methods written by British Standards Institute Staff and published by . This book was released on 2006-11-30 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle size measurement, Particle size distribution, Size classification, Particulate materials, Photographic images, Optical instruments, Optical measurement, Statistical methods of analysis, Specimen preparation, Microscopic analysis

Download or read book Risk and Reliability in Geotechnical Engineering written by Kok-Kwang Phoon and published by CRC Press. This book was released on 2018-10-09 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Establishes Geotechnical Reliability as Fundamentally Distinct from Structural Reliability Reliability-based design is relatively well established in structural design. Its use is less mature in geotechnical design, but there is a steady progression towards reliability-based design as seen in the inclusion of a new Annex D on "Reliability of Geotechnical Structures" in the third edition of ISO 2394. Reliability-based design can be viewed as a simplified form of risk-based design where different consequences of failure are implicitly covered by the adoption of different target reliability indices. Explicit risk management methodologies are required for large geotechnical systems where soil and loading conditions are too varied to be conveniently slotted into a few reliability classes (typically three) and an associated simple discrete tier of target reliability indices. Provides Realistic Practical Guidance Risk and Reliability in Geotechnical Engineering makes these reliability and risk methodologies more accessible to practitioners and researchers by presenting soil statistics which are necessary inputs, by explaining how calculations can be carried out using simple tools, and by presenting illustrative or actual examples showcasing the benefits and limitations of these methodologies. With contributions from a broad international group of authors, this text: Presents probabilistic models suited for soil parameters Provides easy-to-use Excel-based methods for reliability analysis Connects reliability analysis to design codes (including LRFD and Eurocode 7) Maximizes value of information using Bayesian updating Contains efficient reliability analysis methods Accessible To a Wide Audience Risk and Reliability in Geotechnical Engineering presents all the "need-to-know" information for a non-specialist to calculate and interpret the reliability index and risk of geotechnical structures in a realistic and robust way. It suits engineers, researchers, and students who are interested in the practical outcomes of reliability and risk analyses without going into the intricacies of the underlying mathematical theories.

Download or read book Particle Size Analysis Image Analysis Methods Part 2 Dynamic Image Analysis Methods written by and published by . This book was released on 2006 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Issues in Materials and Manufacturing Research 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 11119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Materials and Manufacturing Research: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Materials and Manufacturing Research. The editors have built Issues in Materials and Manufacturing Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Materials and Manufacturing Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Materials and Manufacturing Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Particle Size Analysis written by International Organization for Standardization and published by . This book was released on 2006 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Particle Size Distribution Influence on Flowability of Granular Materials Using a Digital Image Correlation Method written by Ragunanth Venkatesh and published by . This book was released on 2021 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the aim to characterize the flowability of granular materials under uniaxial compression force a GFA index can be used. The GFA index is calculated based on the integration of the internal pressure distribution along the cylinder wall caused by uniaxial compressed granular material contained in the cylinder. In this thesis an optical granular friction analyzer (OGFA) is presented, where a digital image correlation (DIC) method is utilized to assess the cylinder strains used to calculate the internal pressure distribution. For the purpose of demonstration and validation of the developed O-GFA apparatus, three SS316L granular material samples with different particle mean sizes were tested and the results confirm that the particle mean size regulates the internal friction of granular materials. Further, the study of the influence of particle size distribution (PSD) width on GFA index and its related flowability showed that as PSD width increases, the GFA index increases, internal friction decreases and the internal pressure ratio remains constant. It has also been shown that the value of GFA index is load independent. Based on the experiments performed and presented results the main advantage of using the DIC method based O-GFA is that the piston-powder contact point and the region of the integration avoiding the region under the edge effects can be defined. Additionally, a 2% improvement of the GFA index's accuracy has been achieved and showed by parametric analysis that the most of the observed total error (7.5%) arises from the DIC method-based measurements of the strains along the piston. Its robustness with respect to the number of points considered in evaluation of strains and related internal pressure has been demonstrated. It can also be concluded that, determining the GFA index using the O-GFA for characterizing the flowability of uniaxially compressed granular material is an alternative to traditional methods, which require the individual properties of granular materials i.e. internal friction and internal pressure ratio to be determined through two separate tests.

Download or read book Physical Modelling in Geotechnics Volume 2 written by Andrew McNamara and published by CRC Press. This book was released on 2018-07-11 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical Modelling in Geotechnics collects more than 1500 pages of peer-reviewed papers written by researchers from over 30 countries, and presented at the 9th International Conference on Physical Modelling in Geotechnics 2018 (City, University of London, UK 17-20 July 2018). The ICPMG series has grown such that two volumes of proceedings were required to publish all contributions. The books represent a substantial body of work in four years. Physical Modelling in Geotechnics contains 230 papers, including eight keynote and themed lectures representing the state-of-the-art in physical modelling research in aspects as diverse as fundamental modelling including sensors, imaging, modelling techniques and scaling, onshore and offshore foundations, dams and embankments, retaining walls and deep excavations, ground improvement and environmental engineering, tunnels and geohazards including significant contributions in the area of seismic engineering. ISSMGE TC104 have identified areas for special attention including education in physical modelling and the promotion of physical modelling to industry. With this in mind there is a special themed paper on education, focusing on both undergraduate and postgraduate teaching as well as practicing geotechnical engineers. Physical modelling has entered a new era with the advent of exciting work on real time interfaces between physical and numerical modelling and the growth of facilities and expertise that enable development of so called ‘megafuges’ of 1000gtonne capacity or more; capable of modelling the largest and most complex of geotechnical challenges. Physical Modelling in Geotechnics will be of interest to professionals, engineers and academics interested or involved in geotechnics, geotechnical engineering and related areas. The 9th International Conference on Physical Modelling in Geotechnics was organised by the Multi Scale Geotechnical Engineering Research Centre at City, University of London under the auspices of Technical Committee 104 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). City, University of London, are pleased to host the prestigious international conference for the first time having initiated and hosted the first regional conference, Eurofuge, ten years ago in 2008. Quadrennial regional conferences in both Europe and Asia are now well established events giving doctoral researchers, in particular, the opportunity to attend an international conference in this rapidly evolving specialist area. This is volume 2 of a 2-volume set.

Download or read book Particle Size Analysis Image Analysis Methods written by British Standards Institution and published by . This book was released on 2022 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanics of Granular Materials An Introduction written by K. Iwashita and published by CRC Press. This book was released on 2020-08-13 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook compiles reports written by about 35 internationally recognized authorities, and covers a range of interests for geotechnical engineers. Topics include: fundamentals for mechanics of granular materials; continuum theory of granular materials; and discrete element approaches.

Download or read book Thermomechanics Infrared Imaging Inverse Problem Methodologies Mechanics of Additive Advanced Manufactured Materials and Advancements in Optical Methods Digital Image Correlation Volume 4 written by Sharlotte L.B. Kramer and published by Springer Nature. This book was released on 2022-02-14 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermomechanics & Infrared Imaging, Inverse Problem Methodologies and Mechanics of Additive & Advanced Manufactured Materials, and Advancement of Optical Methods & Digital Image Correlation, Volume 4 of the Proceedings of the 2021 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the fourth volume of four from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including: Test Design and Inverse Method Algorithms Inverse Problems: Virtual Fields Method Material Characterizations Using Thermography Fatigue, Damage & Fracture Evaluation Using Infrared Thermography Mechanics of Additive & Advanced Manufactured Materials DIC Methods & Its Applications Photoelasticity and Interferometry Applications Micro-Optics and Microscopic Systems Multiscale and New Developments in Optical Methods

Download or read book Modern Drying Technology Volume 2 written by Evangelos Tsotsas and published by John Wiley & Sons. This book was released on 2011-02-10 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This five-volume handbook provides a comprehensive overview of all important aspects of modern drying technology, including only cutting-edge results. Volume 2 comprises experimental methods used in various industries and in research in order to design and control drying processes, measure moisture and moisture distributions, characterize particulate material and the internal micro-structure of dried products, and investigate the behavior of particle systems in drying equipment. Key topics include acoustic levitation, near-infrared spectral imaging, magnetic resonance imaging, X-ray tomography, and positron emission tracking.

Download or read book Mineral Processing Technology written by Abraham Adewale Adeleke and published by CRC Press. This book was released on 2023-05-31 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mineral processing technology is a branch of applied science that deals with the principles and practice of separating useful minerals from primary solid ore mineral resources. This book introduces the science and technology of processing solid minerals to concentrates of grades suitable for industrial extraction of metal values and other non-metallic products. It also includes case studies, typical process flowsheets, aspects of the processing of tailings arising from mineral processing plants and worked examples. Features: Includes science and technology of processing solid minerals to concentrates of grades, suitable for industrial extraction of metal values and other non-metallic products. Provides a logical progression from basic to advanced concepts in mineral processing. Designed to stimulate students to think as mineral processing engineers in training. Explores sustainable mineral processing and circular economy in mineral processing. Contains worked examples that clearly illustrate the various theories presented and help readers develop problem-solving skills in mineral processing This book is aimed at professionals and senior undergraduate students in metallurgy, mining, mineral processing, chemistry and chemical engineering.