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Showing 1 to 20 of 58 for “"Strain analysis"”.
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Differential strain analysis : application to shock induced microfractures
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
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Numerical Stress-Strain Analysis of a Viscoelastic Mine Roof
Made available in DSpace on 2014-12-10T17:57:50Z (GMT). No. of bitstreams: 1 6808153.pdf: 3588277 bytes, checksum: 51ff28b69bf0dfdab68ca90afffa4d99 (MD5) Previous issue date: 1967
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Strain analysis in glenohumeral capsule through finite element modelling
The injury mechanics and strain distribution in the glenohumeral capsule at a particular joint angle have been studied extensively. However, there is a lack of information on the strain distributions in the capsule under complex joint angles, i.e, during the activities of daily living (ADL). To …
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Advances in displacement and strain analysis by moiré interferometry
… maximum, and (2) the complete state of strain on the surface of a tensile specimen with a central hole was obtained by two different shearing techniques. In the high sensitivity experiment a highly reflective diffraction grating of 2000 lines/mm (50,800 ℓ/in) was applied to the surface. …
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Skin strain analysis software for the study of human skin deformation
Skin strain studies have never been conducted in a precise and automated fashion. Previous in vivo strain investigations have been labor intensive and the data resolution was extremely limited such that their results were largely qualitative. There is a need for a better system to collect, compute, …
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Thermomechanical strain analysis of electronic packages using Moiré interferometry by computational and manual fringe reduction
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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Strain Analysis Across the Margins of the Elkahatchee and Coley Creek Plutons, Alabama Eastern Blue Ridge: Implications for the Alexander City Fault
… Coley Creek orthogneiss exhibit zones of high strain, evidenced by mylonitic fabrics, ductile deformation of feldspar grains, grain size reduction, and changes in mica content at their margins. Geologic mapping in the vicinity of the Coley Creek pluton shows no evidence for a ductile shear zone …
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Genetic Analysis of Clostridium Acetobutylicum Using Two-Dimensional PFGE to Construct a Macrorestriction Map of ATCC 824 and Restriction Enzyme Profiles for Strain Analysis
C. acetobutylicum and C. butyricum strains were analyzed using rare-cutting restriction enzymes by one-dimensional and two-dimensional PFGE. C. acetobutylicum strains were placed into three groups based on their restriction enzyme profiles following digestion with SalI, SmaI, and MluI. C. …
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Deep Learning Approach for the Automated Characterization of Cardiac Mechanics
… may occur without changes in this measure. Strain analysis provides more meaningful measures through non-invasive evaluation of myocardial deformation from cardiac magnetic resonance imaging data, and can therefore identify dysfunction before reduction in ejection fraction. Diagnosis based …
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Geometrically nonlinear finite element analysis of space frames
… large displacement and large rotation, but small strain analysis. A beam-column element or finite element can be used to model geometrically nonlinear behavior of space frames. The two element models are compared on the basis of their efficiency, accuracy, economy and limitations. An iterative …
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Verification of rain-flow reconstructions of a variable amplitude load history
… test lives also agree with a simplified local strain analysis performed on the specimen utilizing the rain-flow cycle count. The rain-flow reconstruction technique is shown to be a viable test spectrum alternative to storing the complete original load history, especially in saving computer …
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Complex Crustal Stratification Within the Chugach Mountains, Southern Alaska
<p>Strain within the crust is accommodated along vertical gradients, but a general characterization is difficult given the heterogeneity of the earth's outermost layer. The western termination of the Chugach metamorphic complex in southern Alaska includes a uniquely well exposed crustal section …
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Obtenção em laboratório de parâmetros de solos para aplicação no método dos elementos finitos
Hyperbolic parameters to be used in stress-strain analysis by the Finite Element Method are obtained with triaxial tests on undisturbed soil samples. The soil studied was a sand containing 7% clay and 8% silt. Two 30 x 30 x 30 cm undisturbed samples were collected in the subway excavation, near …
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Orthogonal cutting in lubricated conditions
… friction in orthogonal cutting. The apparent strain analysis of orthogonal cutting of ductile materials is shown to relate the lubricating effects of a range of cutting fluids to the energy requirements of the process. Data is shown for cutting tests using a rig designed to allow measurement …
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Non-linear Contact Analysis of Meshing Gears
… one of the critical aspects of vibration analysis, and it contains various potential faults such as misalignment, cracks, and noise. Therefore, it requires vibration monitoring to ensure the system is operating properly. Case mounted accelerometers are frequently used to monitor …
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A análise elasto-plástica de túneis pelo método dos elementos finitos
… element program for the elastoplastic plane strain analysis was developed. Its purpose is to compute the displacements and stresses in soil and rock masses, and in tunnel supporting elements. Basic characteristics of other tunnel design methods have also been discussed. At the sarne time, …
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Flight Regime and Maneuver Recognition for Complex Maneuvers
… the determination of loads for stress and strain analysis. It can also be used in recreational aviation for maneuver recognition, for example in aerobatics.</p> <p>This study uses a flight simulator to generate representative flight data that is parsed by a specifically developed algorithm …
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Structural and metamorphic evolution of a gneiss terrain in the Namaqua Belt near Onseepkans, South West Africa
… displacement of 85 km is indicated by the strain analysis. The shear zone developed under medium to high-grade metamorphic conditions and the mylonites were formed by a process of dislocation and recovery.
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THERMO-HYDRO-MECHANICAL NUMERICAL MODELLING TO ASSESS THE ROLE OF CLIMATIC FACTORS IN THE STABILITY OF ALPINE ROCK SLOPES
… the knowledge of climate impacts on the stress-strain evolution of rock slopes, through the adoption of a multi-disciplinary approach and the development of multiphysics numerical analyses. Several case studies of past and active rockslide events in the Alpine region were analyzed, for which the …
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Siloxane modified polyurea and polyurethane urea segmented copolymers
… scanning calorimetry (DSC) and stress-strain analysis were used to characterize the bulk properties. In general, the surface enrichment of siloxane was observed in both solvent cast blends and siloxane incorporated systems. The surface siloxane concentration showed a small increase with …
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