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 6 of 6 for “"Fracture Process Zone (FPZ)"”.
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Evaluation of viscous effects in crack tip fields in recycled asphalt pavement materials using digital image correlation
In this work, we investigated the fracture behavior of asphalt, a heterogeneous mixture of hard aggregates (usually rock) with a polymeric binder (also called asphalt), used in paving applications. Specifically we studied the dependence of asphalt fracture response on loading rate, temperature, and …
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Fracture process zone : microstructure and nanomechanics in quasi-brittle materials
Cracks begin (and end) at a crack tip; the "Fracture Process Zone" (FPZ) is a region of damage around the crack tip. The context of this research is the FPZ in quasi-brittle materials, which is characterized by cracking at various scales. This study focuses on crack propagation and FPZ development …
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Interfacial stress analysis and strengh prediction of plated rc beams
… understand the stress characteristics at this zone. This thesis reports a systematic investigation on the stress distribution at the interface between the concrete and the bonded plate and the prediction of the failure loads using the obtained stresses. A Finite Element Analysis (FEA) based on …
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Asphalt mixture evaluation using performance space diagrams, digital image correlation, and discrete element modeling
… polymer, bio-modifiers, and warm mix asphalt processes, and recycled asphalt materials, such as recycled asphalt pavement (RAP) and shingles (RAS), have limited long term field performance data. As a result, traditional and enhanced laboratory performance tests are necessary to determine their …
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Fracture in polycrystalline diamond. Investigating cracking and toughness behaviour using a miniature double torsion technique
… material make controllable crack propagation and fracture parameter studies very difficult. Therefore, the research project investigated the ability of the DT technique to controllably initiate and propagate cracks, followed by the development of the in-situ SEM miniature DT rig. Development of …
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Effect of specimen geometry and test configuration on the fracture process zone for asphalt materials
… the symmetric axis resulting in mode-I type of fracture similar to, the typical three-point bending beam tests. The I-FIT global response refers to the load-versus-displacement curve that is characterized using the fracture energy (FE), strength, and post-peak slope. The microstructural response …