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Effects Of Heterogeneity And Friction On The Deformation And Strength Of Rock
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Book Synopsis Effects of Heterogeneity and Friction on the Deformation and Strength of Rock by :
Download or read book Effects of Heterogeneity and Friction on the Deformation and Strength of Rock written by and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental observations of the evolution of damage in rocks during compressive loading indicate that macroscopic failure occurs predominantly by extensile crack growth parallel or subparallel to the maximum principal stress. Extensile microcracks initiate at grain boundaries and open pores by a variety of micromechanical processes which may include grain bending, Brazilian type fracture and grain boundary sliding. Microstructural heterogeneity in grain size, strength and shape determines the magnitude of the local tensile stresses which produce extensile microcracking and the stability with which these microcracks coalesce to form macrocracks. Friction at grain boundaries and between the surfaces of microcracks reduces the strain energy available for extensile crack growth and increases the stability of microcrack growth. In clastic rocks, frictional forces may improve the conditions for extensile microcrack growth by constraining the amount of sliding and rotation of individual grains. Micromechanical models are used to investigate the effects of heterogeneity and friction on the deformation and strength of crystalline and clastic rocks.
Book Synopsis Fracture and Damage in Quasibrittle Structures by : Z.P. Bazant
Download or read book Fracture and Damage in Quasibrittle Structures written by Z.P. Bazant and published by CRC Press. This book was released on 2004-01-14 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of failure of quasibrittle materials is of paramount importance in many engineering fields. This subject has become a broad and important field of considerable mathematical complexity, with many competing models and unsolved problems. Attention in this volume focuses on concrete, rock, masonry, toughened ceramics, ice and other quasibrittle materials characterized by the development of large zones of cracking or other microstructural damage, and its localization into major fractures.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scale Effects in Rock Masses 93 by : A. Pinto da Cunha
Download or read book Scale Effects in Rock Masses 93 written by A. Pinto da Cunha and published by CRC Press. This book was released on 2020-09-10 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the 2nd International Scale Effects in Rock Masses, held in Lisbon, June 25, 1993. The text includes coverage of scale effects in the determination of the deformability and strength of rock masses and scale effects in the determination of internal rock masses.
Book Synopsis True Triaxial Testing of Rocks by : Marek Kwasniewski
Download or read book True Triaxial Testing of Rocks written by Marek Kwasniewski and published by CRC Press. This book was released on 2012-08-06 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book ever published on the problems of true triaxial testing of rocks addressing all aspects of true triaxial testing of rocks, including: (i) true triaxial testing techniques and procedures; (ii) test results: strength, deformability, failure mode, permeability, acoustic emission, and elastic wave velocity; (iii) constitutiv
Book Synopsis Strength, Deformation and Friction of in Situ Rock by : H. R. Pratt
Download or read book Strength, Deformation and Friction of in Situ Rock written by H. R. Pratt and published by . This book was released on 1974 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field and laboratory program was conducted at several test sites to determine the strength, deformation, and frictional properties of a variety of rock types (sandstone, amphibolite, quartz diorite). The test results at Auburn and Glen Canyon dams compared favorably with those obtained by the US Bureau of Reclamation. A series of in situ and laboratory specimens from the MIXED COMPANY site were tested to determine the effects of specimen size, saturation, and anisotropy on the strength and deformation of massive sandstone. Direct and proportional shear tests were conducted to determine the effect of load path on frictional properties.
Book Synopsis Fracture Processes of Concrete by : Jan G.M. van Mier
Download or read book Fracture Processes of Concrete written by Jan G.M. van Mier and published by CRC Press. This book was released on 2017-07-14 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite tremendous advances made in fracture mechanics of concrete in recent years, very little information has been available on the nature of fracture processes and on reliable test methods for determining parameters for the different models. Moreover, most texts on this topic discuss numerical modeling but fail to consider experimentation. This book fills these gaps and synthesizes progress in the field in a simple, straightforward manner geared to practical applications.
Book Synopsis Mechanism of Brittle Fracture of Rock by : Z. T. Bieniawski
Download or read book Mechanism of Brittle Fracture of Rock written by Z. T. Bieniawski and published by . This book was released on 1967 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Rock Mechanics by : Kiyoo Mogi
Download or read book Experimental Rock Mechanics written by Kiyoo Mogi and published by CRC Press. This book was released on 2007 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture and flow of rocks under stress and their geophysical and seismological implications raise fundamental questions in rock mechanics, particularly in the areas of tectonophysics and seismology. This text exclusively addresses the deformation and fracture of rock specimens under general triaxial compression, in which all three principal stresses are different; which significantly affects the ultimate strength of rocks. It moreover deals with deformation and failure folloiwng intermediate principal stress in graphic and numerical form. The effect of the intrinsic features of rock masses of inhomogeneous or anisotropic structure are taken into account, as are acoustic emission phenomena in rocks under various stress states. Friction in rocks, measured by a newly-designed shear-testing machine, is discussed in relation to earthquake phenomena.
Book Synopsis Engineering Plasticity and Its Applications from Nanoscale to Macroscale by : Hoon Huh
Download or read book Engineering Plasticity and Its Applications from Nanoscale to Macroscale written by Hoon Huh and published by World Scientific. This book was released on 2009 with total page 925 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the Asia-Pacific Conference on Engineering Plasticity and Its Applications (AEPA) is to provide a free forum for exchanging ideas and introducing the latest research findings in the field of engineering plasticity. This conference is unique among the related conferences in that it provides a forum for all fields of plasticity so that multi-disciplinary research works are encouraged. This proceedings volume consists of papers presented at AEPA2008, and covers the following categories in all fields of engineering plasticity: constitutive modeling; damage, fracture, fatigue and failure; dynamic loading and crash dynamics; engineering applications and case studies; experimental and numerical techniques; molecular dynamics; nano, meso, micro and crystal plasticity; phase transformations; plastic instability and strain localization; plasticity in advanced materials; plasticity in materials processing technology; plasticity in tribology; porous, cellular and composite materials; structural plasticity; superplasticity; and time-dependent deformation. Ranging from nanoscale to macroscale applications of engineering plasticity, this book touches upon fields as diverse as mechanical engineering, materials science, physics, chemistry and civil engineering.
Book Synopsis Mechanical Behavior and Damage Fracture Mechanism of Deep Rocks by : Sheng-Qi Yang
Download or read book Mechanical Behavior and Damage Fracture Mechanism of Deep Rocks written by Sheng-Qi Yang and published by Springer Nature. This book was released on 2022-01-13 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents mainly experimental studies on the mechanical behavior and damage fracture mechanism of deep rocks including sandstone, marble, mudstone and granite, combining with several advanced technologies of X-ray micro-CT and AE monitoring. It has several unique features: 1) Investigates the influence of loading path on triaxial strength and deformation behavior of sandstone and marble; 2) Analyzes the effect of borehole size on triaxial strength and deformation behavior of hollow sandstone; 3) Explores the influence of high temperature on triaxial deformation and permeability behavior of sandstone and granite; 4) to reveal the damage fracture mechanism of deep rocks using spatial AE techniques and X-ray micro CT observations. This work will appeal to a wide readership from technicians in the field of geotechnical engineering and engineering geology to scholars carrying out research in the rock mechanics.
Book Synopsis Mechanical and Electrical Technology IV by : Mohamed Othman
Download or read book Mechanical and Electrical Technology IV written by Mohamed Othman and published by Trans Tech Publications Ltd. This book was released on 2012-11-29 with total page 3000 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the 4th International Conference on Mechanical and Electrical Technology (ICMET 2012), held during the 24 to 26th July 2012 in Kuala Lumpur, Malaysia, take the form of 614 peer-reviewed papers grouped as follows: Materials Engineering; Applied Mechanics and Mechanical Engineering; Electrotechnics and Electrical Machines; Energy and Power Engineering; Measurements, Monitoring and Sensors; Electronic and Radio Engineering; Computer-Aided Design and Technology; Control and Automation; Manufacturing Processes and Technology.
Book Synopsis Scale Effects in Rock Masses 93 by : A. Pinto da Cunha
Download or read book Scale Effects in Rock Masses 93 written by A. Pinto da Cunha and published by CRC Press. This book was released on 2020-09-10 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the 2nd International Scale Effects in Rock Masses, held in Lisbon, June 25, 1993. The text includes coverage of scale effects in the determination of the deformability and strength of rock masses and scale effects in the determination of internal rock masses.
Book Synopsis Underground Excavations in Rock by : E.T. Brown
Download or read book Underground Excavations in Rock written by E.T. Brown and published by CRC Press. This book was released on 1980-06-30 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground Excavations in Rock deals with the geotechnical aspects of the design of underground openings for mining and civil engineering processes.
Book Synopsis Imaging, Mapping and Modelling Continental Lithosphere Extension and Breakup by : Garry D. Karner
Download or read book Imaging, Mapping and Modelling Continental Lithosphere Extension and Breakup written by Garry D. Karner and published by Geological Society of London. This book was released on 2007 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarises our present understanding of the formation of passive continental margins and their ocean-continent transitions. It outlines the geological, geophysical and petrological observations that characterize extensional systems, and how such observations can guide and constrain dynamic and kinematic models of continental lithosphere extension, breakup and the inception of organized sea-floor spreading.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rock Mechanics: Meeting Society's Challenges and Demands, Two Volume Set by : Erik Eberhardt
Download or read book Rock Mechanics: Meeting Society's Challenges and Demands, Two Volume Set written by Erik Eberhardt and published by CRC Press. This book was released on 2007-05-17 with total page 1772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ore extraction through surface and underground mining continues to involve deeper excavations in more complex rock mass conditions. Communities and infrastructure are increasingly exposed to rock slope hazards as they expand further into rugged mountainous terrains. Energy needs are accelerating the development of new hydroelectric dams and exploit
