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Showing 1 to 20 of 152 for “"shear deformation"”.
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Analysis of composite moving beams using higher order shear deformation theory
… its supports is analyzed based on a higher-order shear deformation theory. The dynamic behavior of the beam is carried out using the finite element method. The formulation is based on a variational principle. The essential constraints are applied via Lagrange multipliers. This method is effective …
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Shear deformation of amorphous and nanocrystalline copper microstructures via atomistic simulation
… atom potential developed by Mishin et al. A 0.2 shear strain was applied to each of the nanocrystalline and amorphous samples. From these simulations, we have observed the inverse Hall-Petch behavior of nanocrystalline structures. We have also shown that the amorphous structure as zero grain size …
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The Effects of Shear Deformation in Rectangular and Wide Flange Sections
Shear deformations are, generally, not considered in structural analysis of beams and frames. But shear deformations in members with low clear span-to-member depth ratio will be higher than normally expected, thus adversely affecting the stiffness of these members. Inclusion of shear deformation in …
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Parametric Response of an Elastic Column With Rotary Inertia and Shear Deformation
Made available in DSpace on 2014-12-10T17:25:49Z (GMT). No. of bitstreams: 1 6915332.pdf: 2785296 bytes, checksum: 90c06c478670ef1143080d7640666c3c (MD5) Previous issue date: 1969
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Effect of shear deformation on the large deflections of orthotropic circular plates
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Civil and Sanitary Engineering, 1962
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Chondrocyte metabolism and matrix nano-electromechanics : the response to cartilage tissue shear deformation
… forces gives cartilage unique compressive and shear stiffness that varies with the rate of deformation. Chondrocytes synthesize and degrade matrix components influenced by the regulatory signals present in the extracellular matrix. The transduction mechanisms by which mechanical signals are …
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Linear analysis of laminated composite plates using a higher-order shear deformation theory
A higher-order shear deformation theory is used to analyze laminated anisotropic composite plates for deflections, stresses, natural frequencies, and buckling loads. The theory accounts for parabolic distribution of the transverse shear stresses, satisfies the stress-free boundary conditions on the …
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Geometrically nonlinear analysis of composite laminates using a refined shear deformation shell theory
… allows parabolic description of the transverse shear stresses, and therefore the shear correction factors of the usual shear deformation theory are not required in the present theory. The theory accounts for small strains but moderately large displacements (i.e., von Karman strains). Exact …
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On vibration and stability problems of laminated plates and shells using shear deformation theories
… type loading, is developed using the third-order shear deformation plate theory of Reddy and the first-order shear deformation plate theory. The nonlinear dynamic equations of the first-order shear deformation plate theory and the third-order shear deformation plate theory of Reddy are …
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EFFECTS OF ROTARY INERTIA AND SHEAR DEFORMATION ON EXTENSIONAL VIBRATIONS OF CONTINUOUS CIRCULAR CURVED BEAMS
… for dynamic loading, the fixed-end moment, shear and thrusts for concentrated and distributed loads have been derived. Two continuous circular curved beams subjected to free and forced vibrations are given to illustrate the application of the proposed method and to show the effects of rotary …
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A study of vibrations in rotating laminated composite plates accounting for shear deformation and rotary inertia
A first-order shear deformation plate theory is used to predict free vibration frequencies in rotating laminated composite plates. The theory accounts for geometric non-linearity in the form of von Karman strains. The plate is permitted to have arbitrary orientation and offset from the axis of …
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Free Vibration of Bi-directional Functionally Graded Material Circular Beams using Shear Deformation Theory employing Logarithmic Function of Radius
… of FGM circular beams by using a logarithmic shear deformation theory that incorporates through-the-thickness logarithmic variation of the circumferential displacement, and does not require a shear correction factor. The radial displacement of a point is assumed to depend only upon its angular …
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Effects of high shear deformation from equal channel angular pressing-conform and post thermal mechanical processing on the microstructural and mechanical properties of titanium alloys
… a better understanding of the severe plastic deformation processing and properties of titanium alloys subject to equal channel angular pressing-conform (ECAP-C) and post thermal mechanical processing (TMP). The ECAP-C process uses high-shear deformation to refine the microstructure with the …
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Transient analysis of layered composite plates accounting for transverse shear strains and von Karman strains
… is inadequate because it neglects transverse shear deformation, rotatory inertia, and geometric nonlinearities. In this thesis, a theory to account for transverse shear deformation and rotatory inertia is combined with the von Karman theory of geometric nonlinearities to develop the nonlinear …
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Simulação numérica para análise estática e de vibrações livres de estruturas de placas de materiais compostos
… A detailed review of the First Order Shear Deformation Theory was made, and two plates elements were implented. The applications include homogeneous isotropic and orthotropic plates and multilayered composite plates. A comparative study between a classical bending element and a shear …
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Strain path partitioning during forceful emplacement of the Papoose Flat pluton, Inyo Mountains, CA
… pluton where, due to intense crystal-plastic deformation, they are thinned to less than 10% of their original stratigraphic thickness. This deformation is constrained by textural relationships to have occurred during contact metamorphism. The strain within the dominantly S>L tectonites is …
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Probability-based stability analysis of a laminated composite plate under combined in-plane loads
… classical laminated plate theory, a first-order shear deformation theory, and a higher-order shear deformation theory. The probabilistic characteristics, such as the probability density and cumulative distribution functions for the resistance to buckling of the plate are obtained by employing the …
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Random vibrations of composite beams and plates
… composite laminates are strongly affected by the shear deformations of their layers. However, incorporation of the shear deformation further complicates the equations of motion and their analysis. As a result the vibration analysis of such structures have been limited to simple free vibration …
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Vibration control and design of composite cantilevers taking into account structural uncertainties and damage
… Lamination (CLT) and the First-order Transverse Shear Deformation Theories (FSDT). Upon comparing the natural frequencies and mode shapes obtained by both theories, the effects of transverse shear deformation will be emphasized. Other nonclassical effects as e.g. the bending-twist coupling and …
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Dynamic instability of composite laminated plates
… equations are derived based on the first order shear deformation theory with a linear strain-displacement relationship. The regions of instability for the resulting set of coupled Mathieu equations are obtained using a method of simultaneous diagonalization. Boundary frequencies generated using …
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