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 10 of 10 for “"Equivalent Continuum"”.
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An Approximate Dynamic Analysis of Tube Structures
… discrete beams and columns of a building by an equivalent continuum.
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Vibration Analysis of a Composite Wing Box with Arbitrarily Shaped Spars and Ribs
… reducing the overall mass of the structure. An equivalent continuum plate model of a wing box using energy formulations is proposed at the preliminary design stage to reduce the high and costly CPU time incurred from the optimization of finite element models. In the present plate model, the …
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Applicability Of Continuum Fracture Mechanics In Atomistic Systems
… the amplitude of the unbounded stress, the continuum fracture mechanics defines the stress intensity factor K to characterize the stress and displacement fields in the vicinity of the crack tip, thereby developing the relation between the stress singularity and surface energy (energy release …
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The effect of geometry and topology on the mechanics of grid shells
… solutions are derived using the concept of the equivalent continuum and compared to the numerical models. Then, the parametric study of the spherical cap is performed including variations of the grid spacing, the span to height ratio and the panel shape (triangles and quadrilaterals). Having …
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Elastic constants from molecular mechanics simulations of frequencies of free-free single-walled carbon nanotubes and clamped single-layer graphene sheets
… with the MM3 potential and finding their equivalent continuum structures (ECSs). The computational framework has been validated by comparing the presently computed basal plane stiffness and frequencies of radial breathing modes (RBMs) with those available in the literature. We have …
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Simulations of Indentation at Continuum and Atomic levels
… level and stresses and strains defined at the continuum level. These are then used to compare stress and strain distributions in mechanical tests performed on atomic systems and their equivalent continuum structures. Whereas averaged stresses and strains defined in terms of the overall …
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Mechanical Properties of Cellular Core Structures
… Analyzing cellular core to calculate the equivalent material properties of this type of structure is the only way to properly design the core for sandwich enhanced stiffness to weight ratio of the sandwich panels. A detailed literature review is first conducted to access the current state …
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Discontinuous modelling of strain localisation and failure
… shown that this type of model can be cast in an equivalent continuum format, a form which is known to be sensitive to the spatial discretisation. The second approach developed involves the addition of the Heaviside function to the underlying finite element interpolation basis. This method is …
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Analyis [sic] and design of drilled shafts in rock
… mass is isotropic and uses an elasto-plastic continuum model to predict the load-displacement response. This model can consider drilled shafts in rock overlain by soil and it was validated by comparing its results with available theoretical solutions and field test data. The detailed design …
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Carbon Nanotube Mechanics: Continuum Model Development from Molecular Mechanics Virtual Experiments
… in the mechanics of materials laboratory on a continuum structure. The output (energy and deformation rather than the load and deflection) is used to understand the material response and formulate macroscopic constitutive relations. From results of MM simulations of axial and torsional …