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Showing 1 to 20 of 36 for “"Fracture analysis"”.
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Fracture analysis in biomimetic Bouligand architectures
… approach to investigate the mechanics and the fracture mechanism of the Bouligand structure. In particular, I study the propagation of a twisting crack that follows the helicoidal arrangement by following the fiber alignment. I carry out specific three-point bending experiments done on …
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Fracture analysis of an axi-symmetrical solid
… previously to provide an effective means for the analysis of two dimensional elastic and plastic continua. The method is applied herein to the axially symmetric, solid, and is extended to fracture analysis. The numerical analysis may be broken into three parts. The first involves the role of …
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Fracture analysis in marine batteries by peridynamic theory
… In order to have a better understanding of the fracture mechanics in marine battery, the peridynamic theory is applied in this thesis. Different from classical theory, peridynamic theory has applied spatial integral equations to describe the motion of material structure.;Therefore, it has great …
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Fracture analysis of debonding mechanism for FRP plates
… and are not amenable to finite element analysis because the models require far more detail than will ever be available for the interface. This thesis describes a global-energy-balance based fracture-mechanics model for the debonding mechanism of externally bonded FRP plates attached to …
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Mixed-Mode Fracture Analysis Using a Conservation Integral
Made available in DSpace on 2014-12-14T14:42:18Z (GMT). No. of bitstreams: 1 8004309.pdf: 3007532 bytes, checksum: 2fdc8dc474fdf2ff2415791cb0c6f960 (MD5) Previous issue date: 1979
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Fracture analysis of debonding mechanism for FRP plates
… and are not amenable to finite element analysis because the models require far more detail than will ever be available for the interface. This thesis describes a global-energy-balance based fracture-mechanics model for the debonding mechanism of externally bonded FRP plates attached to …
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Elastic-Fracture Analysis of Cylindrical Prestressed Concrete Reactor Vessels
Made available in DSpace on 2014-12-08T23:57:15Z (GMT). No. of bitstreams: 1 6915296.pdf: 3120477 bytes, checksum: 1a2bbd1e854fb0599395a453e1ab9c46 (MD5) Previous issue date: 1969
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Fracture Analysis of the Lower Oceanic Crust, Atlantis Bank, Southwest Indian Ridge
… ridges. Brittle deformation, such as faults and fractures provide pathways for fluids to interact with the crust, which increases heat and mass exchange between the crust and hydrosphere, and is related to the redistribution of nutrients supporting the deep biosphere. However, little has been …
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Global-local Finite Element Fracture Analysis of Curvilinearly Stiffened Panels and Adhesive Joints
… stiffened panels, in the first step, buckling analysis of panels was performed to determine whether panels satisfied the buckling constraint. In the second step, stress distributions of the panel were analyzed to determine the location of the critical stress under the combined shear and …
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Fracture analysis of carbon fiber/epoxy matrix interface through microbond and cruciform tests
… of the interface. An axisymmetric finite element analysis is carried out with ABAQUS [2] CAE to extract the parameters (failure strength, fracture toughness, friction coefficient and the final displacement to failure), that define the cohesive failure model used to simulate the initiation and …
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Global/local and coupled high order FEM-Peridynamics models for fracture analysis of isotropic and composite structures
L'abstract è presente nell'allegato / the abstract is in the attachment
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A new solution for an edge dislocation with applications to the stress and fracture analysis of multilayered media
The stress and fracture analysis of multilayered materials and structures containing crack-like defects is of interest in many research areas, such as composites, bio-mechanics, and geomechanics, and engineering applications, such as coatings, electronics, and adhesive joints. The main objective of …
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Enrichment of the Boundary Element Method through the Partition of Unity Method for Fracture Analysis using Local and Global Formulations
… to the Boundary Element Method to allow accurate analysis of 2D crack problems. An overview of fracture mechanics is given, with particular emphasis given to numerical methods and the techniques used to extract the highly important stress intensity factors - a measure of the singularity of a crack …
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Analysis of Composites using Peridynamics
… and cracks, peridynamics is able to model fracture and damage in a more natural way, without having to work around mathematical singularities present in the classical continuum mechanics theory. The objective of the present work is to show how peridynamics can be implemented in finite …
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Mode I Fracture Testing on Zirconium Foils Under Plane-stress Condition
… to ensure such Zr components operate safely, fracture analysis of Zr alloys has been widely studied. Considering the high cost and difficulties associated with using neutron-irradiated Zr specimens for fracture analysis, proton irradiated testing has been proposed to reduce the cost and …
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Quantitative and consistent tests for interlayer adhesion in laminated glass
… of samples: low and high adhesion. Stress and fracture analysis was conducted using the finite element method. The numerical analysis was first validated against simple strength of materials analyses and the measured load deflection response. The numerical analysis then provided the variation …
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A combined experimental and stochastic finite element analysis methodology for the probabilistic fracture behavior of composite laminates
… experimental and stochastic finite element analysis methodology that can incorporate the material property variabilities and based on these, predict the stochastic characteristics of the Stress Intensity Factor (SIF) and the Strain Energy Release Rate (G) of composite laminates, is …
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Moisture degradation in FRP bonded concrete systems : an interface fracture approach
… criterion implementation, form a synergistic analysis of the mechanistic debonding behavior affected by moisture. Results have shown that moisture affected debonding is a highly complex phenomenon that involves physical changes in the bond as well as in its constituent materials. In …
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Structure property and deformation analysis of polypropylene montmorillonite nanocomposites.
… compatibilizer between the MLS and non-polar PP. Analysis of transmission electron micrographs and X-ray diffraction patterns on the surface and below the surface of our samples revealed a unique skin-core effect induced by the presence of clay. Differential scanning calorimetric and polarized …
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Application of the finite element method to problems in fracture mechanics
… been finding increasing use in all aspects of fracture mechanics, and often provide the only means for analyzing fracture problems. The work presented here, is concerned with the application of the finite element method to cracked structures. The present work was directed towards the …
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