Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 2656 for “"Fracture"”.
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Brittle fracture
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1960.
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Acid Fracture and Fracture Conductivity Study of Field Rock Samples
… studied experimentally. Acid injection data and fracture conductivity measurements obtained in the research presented in this thesis yielded results that qualified and quantified the impact of a specific acid system on rock samples of varying acid solubility. Six rock samples from a carbonate …
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Fracture and hydraulic fracture initiation, propagation and coalescence in shale
… mechanism to initiate and propagate these fractures remains unclear. Moreover, it is unknown how the propagating fracture interacts with other fractures in the Earth. The objective of this research is to gain a fundamental understanding of the hydraulic fracturing process in shales through …
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Fracture of asphalt.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1966. M.S.
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Fracture of concrete
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1967.
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Modelling of dynamic fracture by Phase Field and Finite Fracture Mechanics
L'abstract è presente nell'allegato / the abstract is in the attachment
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Microcracking Fracture Toughness for Graphite Epoxy Composite Laminates Using Finite Fracture Mechanics
… was undertaken to determine the microcracking fracture toughness in composite laminates using the energy release rate criteria. Three materials of specific interest in the aerospace industry – IM7/977-2, IM7/5555 and IM7/5276-1 – were analyzed. To evaluate the microcracking fracture toughness, …
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Fracture in wire drawing.
Massachusetts Institute of Technology. Dept. of Metallurgy. Thesis. 1965. M.S.
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Fracture Mechanics of Networks
… strand mechanics and connectivity to predict fracture in diverse networks that constitute polymeric, architected, and biological materials. While traditional models predict the intrinsic fracture energy – the minimum energy to propagate a crack per unit area – of a polymer network is the …
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Fracture in asphaltic mixtures.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1968.
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Problems in interface fracture
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1990.
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High velocity impact fracture
An in-depth understanding of dynamic ductile fracture is one of the most important steps to improve the survivability of critical structures such as the lost Twin Towers. In the present thesis, the macroscopic fracture modes and the fracture mechanisms of ductile structural components under high …
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Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks
Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which results in early water breakthroughs, reduced …
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Mechanisms of fracture complexity and topology of fracture systems induced by hydraulic fracturing
… general, SRV describes the topology of induced fractures by hydraulic fracturing. Natural fractures (NFs), such as joints and faults, are ubiquitous in oil and gas reservoirs, where their tectonics, diagenesis, and hydrocarbon-generation history make the rock prone to fracturing. Being a …
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Phase-field modeling of fracture: regularization length insensitivity and mixed mode ductile fracture
… time, and occasional impossibility of performing fracture experiments, computational approaches have become instrumental to understand and assess fracture and failure processes in materials and optimize the design of structures. The development of quantitative computational models for predicting …
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Fracture mechanics based fatigue and fracture toughness evaluation of SLM Ti-6Al-4V
… was to determine experimentally the fatigue and fracture toughness characteristic, from a fracture mechanics perspective, of Ti-6Al-4V titanium alloy manufactured by Selective Laser Melting (SLM). Three build orientations are considered where a fatigue crack is grown parallel and two are grown …
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A fracture mechanics study of the fracture toughness testing techniques applied to brittle materials
… an investigation into the application of fracture mechanics to brittle materials, with particular emphasis on the fracture toughness testing techniques used on these materials.
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Fracture mechanics of volcanic eruptions
… produced by a failure model based on fundamental fracture mechanics, applied to a volcanic setting. In addition to the time series of earthquake activity, statistical measures such as seismic b-value are also analysed and compared with corresponding data from the field and laboratory studies. A …
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Fracture Behavior of Masonry Bond
The applied fracture mechanics model, when both elastic and inelastic deformations were considered, always over-estimated the post-peak behavior. However, the post-peak behavior was successfully predicted when the model was modified to consider only elastic deformation. The analysis indicated that …
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