Xem 1-20 trên 123 kết quả Fracture mechanics
  • The book "Applied Fracture Mechanics" presents a collection of articles on application of fracture mechanics methods to materials science, medicine, and engineering. In thirteen chapters, a wide range of topics is discussed, including strength of biological tissues, safety of nuclear reactor components, fatigue effects in pipelines, environmental effects on fracture among others. In addition, the book presents mathematical and computational methods underlying the fracture mechanics applications, and also developments in statistical modeling of fatigue.

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  • Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture.In modern materials science, fracture mechanics is an important tool in improving the mechanical performance of materials and components.

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  • There is a vast multitude of materials with strongly differing properties. A copper wire, for instance, can be bent easily into a new shape, whereas a rubber band will snap back to its initial form after deformation, while the attempt to bend a glass tube ends with fracture of the tube. The strongly differing properties are reflected in the application of engineering materials – you would neither want to build cars of glass nor rubber bridges. The multitude of materials enables the engineer to select the best-suited one for any particular component.

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  • Elsevier Titles of Related Interest CARPINTERI Minimum Reinforcement in Concrete Members. ISBN: 0-08-043022-8 FUENTES E T A L Fracture Mechanics: Applications and Challenges. ISBN: 0-08-043699-4 JONES Failure Analysis Case Studies 11. ISBN: 0-08-043959-4 MACHAETAL Multiaxial Fatigue and Fracture. ISBN: 0-08-043336-7 MARQUIS & SOLIN Fatigue Design of Components. ISBN: 0-08-04331U-Y MARQUIS & SOLIN Fatigue Design and Reliability. ISBN: 0-08-043329-4 MOORE ETAL. Fracture MechanicsTesting Methods for Polymers, Adhesives and Composites.

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  • CARPINTERI Minimum Reinforcement in Concrete Members. ISBN: 0-08-043022-8 FUENTES E T A L Fracture Mechanics: Applications and Challenges. ISBN: 0-08-043699-4 JONES Failure Analysis Case Studies 11. ISBN: 0-08-043959-4 MACHAETAL Multiaxial Fatigue and Fracture. ISBN: 0-08-043336-7 MARQUIS & SOLIN Fatigue Design of Components. ISBN: 0-08-04331U-Y MARQUIS & SOLIN Fatigue Design and Reliability. ISBN: 0-08-043329-4 MOORE ETAL. Fracture MechanicsTesting Methods for Polymers, Adhesives and Composites.

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  • René Descartes gives few philosophical arguments to directly support his rejection of forms in favor of mechanisms . Moreover, the scattered reasons he offers in his corpus are cryptic and hard to unpack. Hence I will draw on Descartes’ intellectual context to reconstruct his reasoning and shed light on his historic elimination of Scholastic Aristotelian substantial forms from the physical world.

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  • The scope of the series covers the entire spectrum of solid mechanics. Thus it includes the foundation of mechanics; variational formulations; computational mechanics; statics, kinematics and dynamics of rigid and elastic bodies; vibrations of solids and structures; dynamical systems and chaos; the theories of elasticity, plasticity and viscoelasticity; composite materials; rods, beams, shells and membranes; structural control and stability; soils, rocks and geomechanics; fracture; tribology; experimental mechanics; biomechanics and machine design.

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  • Fractures are ubiquitous in the brittle lithosphere in the upper part of earth’s crust. They play a critical role in the transport of fluids. Moreover, all major discovered geothermal reservoirs and a considerable number of petroleum reservoirs are in fractured rocks. This restates the importance of studying multiphase flow behavior inside the opened fracture space. From the engineering point of view, a rock fracture as defined here is simply a complex-shaped cavity filled with fluids or solid minerals. Therefore it is understood to include cracks, joints, and faults.

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  • CHAPTER 18 FAILURE Jack Collins Department of Mechanical Engineering Ohio State University Columbus, Ohio CONSIDERATIONS Steve Daniewicz Department of Mechanical Engineering Mississippi State University Starkville, Mississippi 18.1 18.2 18.3 18.4 18.5 CRITERIA OF FAILURE FAILUREMODES 377 378 18.6 ELASTIC DEFORMATION AND YIELDING 382 FRACTURE MECHANICS AND UNSTABLE CRACK GROWTH FATIGUE AND STRESS CONCENTRATION 18.5.1 Fatigue Loading and Laboratory Testing 18.5.2 The S-N-P Curves— A Basic Design Tool 18.5.3 Factors That Affect S-N-P Curves 18.5.

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  • This research project was motivated by the possibility of using fracture mechanics to assist in optimizing gear design. The primary goal is to develop a state-of-the-art capability for modeling three-dimensional crack propagation in gears using boundary element method, finite element method, and fracture mechanics. It is being conducted by a grant between Cornell University and the NASA-Glenn Research Center (formerly known as Lewis Research Center).

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  • Over the past decade, there has been a vast explosion in new information relating to the art and science of dermatology as well as fundamental cutaneous biology. Furthermore, this information is no longer of interest only to the small but growing specialty of dermatology. Scientists from a wide variety of disciplines have come to recognize both the importance of skin in fundamental biological processes and the broad implications of understanding the pathogenesis of skin disease. As a result, there is now a multidisciplinary and worldwide interest in the progress of dermatology....

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  • Tham khảo sách 'fiber fracture elsevier science', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo sách 'mechanics and analysis of composite materialsvalery v, vasiliev & evgeny', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Các chất rắn Ứng suất (Nd: Stress) · Sự biến dạng (Nd: Deformation) Tính tương thích (Nd: Compatibility) Sức căng hữu hạn (Nd: Finite strain) · Sức căng vi phân (Nd: Infinitesimal strain) Tính đàn hồi (Nd: Elasticity) (tuyến tính (Nd: linear)) · Tính dẻo (Nd: Plasticity) Sự uốn (Nd: Bending) · Định luật Hooke Học thuyết hư hỏng (Nd: Failure theory) Cơ học đứt gãy (Nd: Fracture mechanics)

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  • Spring Designer’s Handbook, Harold Carlson Computer-Aided Graphics and Design, Daniel L. Ryan Lubrication Fundamentals, J. George Wills Solar Engineering for Domestic Buildings, William A. Himmelman Applied Engineering Mechanics: Statics and Dynamics, G. Boothroyd and C. Poli Centrifugal Pump Clinic, Igor J. Karassik Computer-Aided Kinetics for Machine Design, Daniel L. Ryan Plastics Products Design Handbook, Part A: Materials and Components; Part B: Processes and Design for Processes, edited by Edward Miller Turbomachinery: Basic Theory and Applications, Earl Logan, Jr.

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  • Rheology involves the study of the deformation and flow of matter. The goal is to establish relationships between stress and deformation for (non-Newtonian) materials where neither Newton's law nor Hooke's law suffice to explain their mechanical behaviour. Many materials exhibit a non-Newtonian behaviour and the area is relevant in many fields of study from industrial to technological applications such as concrete technology, geology, polymers and composites, plastics processing, paint flow, hemorheology, cosmetics, adhesives, etc ......

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  • Osteoporosis and fractures may increase due to hypoestrogenism in menopause and cytochrome P450 inducing AEDs. Recent studies suggest lower bone mineral density (BMD) in adults and children with epilepsy, irrespective of AED treatment. Both idiopathic epilepsy and symptomatic epilepsy are associated with reduced BMD, with the greatest reduction in symptomatic generalized epilepsy (Sheth & Hermann, 2008). However, the pathophysiological underlying mechanisms are far from understood and likely multifactorial.

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  • Fiber composite technology is based on taking advantage of the high strength and high stiffness of fibers, which are combined with matrix materials of similar/ dissimilar natures in various ways, creating inevitable interfaces. In fiber composites, both the fiber and the matrix retain their original physical and chemical identities, yet together they produce a combination of mechanical properties that cannot be achieved with either of the constituents acting alone, due to the presence of an interface between these two constituents.

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  • CO2 injection has recently been shown to provide significant enhanced oil recovery from naturally fractured reservoirs1. Li et al. (2000) performed CO2 injection at 1750 psig on artificially-fractured cores after water flooding in a dead-oil system. Gravity drainage was suggested to be the dominant recovery mechanism in these tests, with significant tertiary oil recovery after water flooding. The authors observed that the recovery of initial oil at the start of the CO2 injection declined as the rock permeability decreased and the initial water saturation increased....

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  • CHAPTER 12 STRENGTH UNDER STATIC CIRCUMSTANCES Charles R. Mischke, Ph.D., RE. Professor Emeritus of Mechanical Engineering Iowa State University Ames, Iowa Joseph E. Shigley Professor Emeritus The University of Michigan Ann Arbor, Michigan 12.1 PERMISSIBLE STRESSES AND STRAINS / 12.2 12.2 THEORY OF STATIC FAILURE / 12.3 12.3 STRESS CONCENTRATION / 12.7 12.4 FRACTURE MECHANICS / 12.11 12.5 NONFERROUS METALS / 12.17 12.6 STOCHASTIC CONSIDERATIONS / 12.20 REFERENCES / 12.

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