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 14 of 14 for “"Cohesive Element"”.
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Forms of cohesion : the development of style in the novels of Virginia Woolf
… cohesion; structural cohesion; discourse as a cohesive element in the novel; and thematic cohesion.
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Studies on the Brittle -Ductile Transition in Silicon
… silicon the crack favors the cleavage planes. A cohesive-element model modified for thermally-driven cracks reproduced many of the experimental crack morphologies.
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A scalable computational approach for modeling dynamic fracture of brittle solids in three dimensions
… of the continuum elastodynamic problem with Cohesive Zone Models (CZM) of fracture. In the proposed framework, discontinuous displacement jumps are allowed to occur at all element boundaries in the pre-fracture regime in a manner similar to "intrinsic" cohesive element methods. However, owing …
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Finite element analysis of combined fracture and delamination on coated substrate under normal and tangential loading
… to normal and tangential loads through a finite element (FE) based methodology. A FE model was built by using the ABAQUS FE analysis software. Half cylinder-on flat contact in a two-dimensional model were carried out with mechanical properties of thermal barrier coating and steel/titanium …
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Application of Numerical Methods to Study Arrangement and Fracture of Lithium-Ion Microstructure
… and analysis of fracture models within finite element simulations. A difficult problem to characterize in the realm of fracture modeling is that of fragmentation, wherein brittle materials subjected to a uniform tensile loading break apart into a large number of smaller pieces. We explore the …
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Mechanisms of Ductile Fracture: Void Growth by Dislocation -Loop Emission and Hydrogen-Assisted Crack Propagation
… of a crack tip. A triaxiality/hydrogen-informed cohesive element was devised to simulate the effect of the microscopic void response in the fracture process zone on the macroscopic crack propagation under plane strain small scale yielding conditions. Numerical results from crack growth …
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Micromechanics of Hydrogen-Induced Crack Initiation in Pipeline Steels and Subcritical Crack Growth
… cracking, we simulate crack propagation by cohesive finite element methodology based on hydrogen-induced decohesion thermodynamics. The results reveal a number of issues related to the complexity of the failure mechanism and the robustness of the cohesive element approach.
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Behaviour of continuous concrete deep beams reinforced with GFRP bars
… the Canadian S806-12, that addressed such elements. In this study, the STM was illustrated and simplified to be adopted for GFRP RC continuous deep beams, and then, the experimental results obtained from this study were employed to assess the performance of the effectiveness factors …
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Spiritual wellbeing and the human-nature relationship: An exploration of the spiritual wellbeing experiences of home and community gardeners.
… spectrum, may offer a complementary and cohesive element to physical, mental and social wellbeing. Nature-based activities hold promise for developing spiritual wellbeing, but prior research has focussed primarily on wilderness settings. Such spaces are increasingly rare and for …
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Progressive Failure Analysis of Double-Notched Composite Laminates
… method, continuum damage mechanics and cohesive element method. These combined approaches help predict both the in-plane damage and delamination in composites. Furthermore, various failure criteria are employed in this thesis to significantly present a comparative study between different …
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Computational Modeling and Impact Analysis of Textile Composite Structutres
… unit cell and sinusoidal functions, and also a cohesive element to study micro-crack shapes. This proposed research has two: 1) studying behavior of textile composites under static loads, 2) studying dynamic responses of these textile composite structures subjected to the transient/ballistic …
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Bastide city territory: landscape infrastructure design, Monpazier, France
… parks inbetween, redescribes ‘territory' as a cohesive element with potential to give unknown future settlement a specific sense of place. At a more immediate scale and time, a raked topography is designed along the comb closest to the bastide, hosting test sites for inhabitation, and finally …
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Fracture analysis in marine batteries by peridynamic theory
… batteries without pre-defined crack path or cohesive element as compared with classical techniques. It has provided an efficient and reliable tool in the design, manufacture, failure detection and life prediction of the marine battery in the real life.
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Failure processes in soft and quasi-brittle materials with nonhomogeneous microstructures
… referred to as interfacial debonding), we use cohesive zone elements which follow the Park-Paulino-Roesler traction-separation relation. To account for friction, we present a new, coupled cohesive-friction relation and detail its formulation and implementation. In the process of this …