Fractures

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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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  • 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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  • 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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  • Failure of locking plate fixation due to varus collapse is a common problem for the elderly population who have osteoporotic bone with comminuted fractures. However, it is possible to increase the stability and the stiffness of the fixation system by using intramedullary fibular graft. This study compares the effectiveness of the augmented versus non-augmented locking plate fixation under clinically relevant cyclic loading. Nine pairs of cadaveric humeri were utilized with one side fixated using the augmented system and the other using the non-augmented one.

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  • The fracture toughness of medium density fiberboard (MDF) as a function of crack length was measured. Fracture toughness was determined from force–displacement and crack length data using a new energy analysis procedure that avoids the scatter of prior discrete analysis methods. Because crack lengths were difficult to observe, they were measured using digital image correlation (DIC). The R curves for two different densities of MDF, two thicknesses, and for both in-plane and through-the-thickness cracks all increased linearly with crack length.

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  • Objectives: To investigate the characteristics of age, gender, occupation, causes, propertiesb of bone fracture in the motor organs at 103 Military Hospital. Subjects and methods: A crosssectional study, retrospective secondary data on 4,918 records of patients of all ages with bone fracture in the motor organs, who entered 103 Military Hospital in emergency or for treatment for the first time in January 2010 to December 2014.

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  • Objectives: To determine fracture rate, fractural risk factor, result of predicting the risk of femoral fracture by FRAX and GARVAN model. Subjects and method: We performed studying on 206 women over 40 years old including 176 in the community and 30 had fracture who lived in the Rachgia city, Kiengiang province.

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  • Objectives: To report our experience in minimally invasive treatment for closed and unstable.fractures of the distal tibia but no indication of intramedullary nailing. Subjects and methods: Twenty two patients underwent minimally invasive treatment for closed fractures of distal tibia.with locking plate reduction under C-arm.

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  • In this paper, the Dung’s microscopic damage model which depicts void growth under plastic deformation is applied to predict ductile fractures in high strength steel API X65. The model is implemented as a vectorized userdefined material subroutine (VUMAT) in the ABAQUS/Explicit commercial finite element code.

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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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  • SALTER-HARRIS FRACTURE Alex Duckworth, MS4 What is a Salter-Harris fracture? Fracture through growth plate in a pediatric patient 35 % of skeletal injuries in patients aged 10-15 involve growth plate Often due to trauma, usually sports-related or fall Complain of point tenderness around fracture site Soft-tissue swelling on physical exam Anatomy of Long Bones Epiphysis distal to the physis (growth plate) Metaphysis on opposite side of physis from epiphysis Diaphysis is long shaft beyond metaphysis Normal Pediatric Long Bone eMedicine – Salter-Harris Fractures : Article by William Moor...

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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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  • Tham khảo sách 'liquid-gas relative permeabilities in fractures: effectsof flow structures, phase transformation and surface roughness', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • CO2 injection has recently been shown to provide significant enhanced oil recovery from naturally fractured reservoirs 1 . 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. Darvish et al.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : The use of tibial Less Invasive Stabilization System (LISS) plate [AO-ASIF] for the treatment of paediatric supracondylar fracture of femur: a case report

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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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  • Fatigue and Fracture 53.1 53.2 53.3 Introduction Redundancy, Ductility, and Structural Collapse Fatigue Resistance Classification of Details in Metal Structural Components • Detailing to Avoid DistortionInduced Fatigue • Classification of Details in Concrete Structural Components • Classification of Stay Cables • Characterization of Truck Loading for Fatigue Robert J. Dexter University of Minnesota John W. Fisher Lehigh University 53.4 53.5 Fracture Resistance Summary 53.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Initial intramuscular perfusion pressure predicts early skeletal muscle function following isolated tibial fractures

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Thrombin related peptide TP508 promoted fracture repair in a mouse high energy fracture model

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