منابع مشابه
Three-Dimensional Geostatistical Analysis of Rock Fracture Roughness and Its Degradation with Shearing
Three-dimensional surface geometry of rock discontinuities and its evolution with shearing are of great importance in understanding the deformability and hydro-mechanical behavior of rock masses. In the present research, surfaces of three natural rock fractures were digitized and studied before and after the direct shear test. The variography analysis of the surfaces indicated a strong non-line...
متن کاملElastic Complex Analysis and Its Applications in Fracture Mechanics
The key point in this paper is the introduction of elastic analytic functions. An elastic analytic function is a function of the form u : C ! C 2 which is diierentiable and satisses equations which are analogous to the Cauchy-Riemann equations of traditional complex analysis such that the following conditions hold: rst the real and imaginary part of the rst complex component of u satisfy the Na...
متن کاملresponse articles: micro and macro analysis
the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...
15 صفحه اولExperimental Analysis of Fracture and Damage Mechanics of Pre-Stressed Concrete Sleepers B70: Part B- Analysis
Initial cracks occur in high strength concrete sleepers for various reasons, such as shrinkage and wrong curing and long lifetime of over 50 years of sleepers. These cracks may lead to complete failure of the structure. In order to more accurately design the sleepers, fracture mechanics (not strength of materials) should be incorporated. In order to achieve this purpose, it is important to fore...
متن کاملotary NiTi Instrument Fracture and its Consequences
c t r a l r t 0 s h 1 a bstract he fracture of endodontic instruments is a procedural roblem creating a major obstacle to normally routine herapy. With the advent of rotary nickel-titanium (NiTi) nstruments this issue seems to have assumed such rominence as to be a considerable hindrance to the doption of this major technical advancement. Considrable research has been undertaken to understand t...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1978
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.64.7_1020