Global ETD Search
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Showing 1 to 11 of 11 for “"Strain Maps"”.
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Fibrous Microstructure and Biomechanics of Healthy and Diseased Aortic Tissues
… can be captured by the material constants in the strain energy density function. Additionally, high material heterogeneity was characterised by the localised strain maps and simulations. Strain maps of axial strips demonstrated a zebra pattern with vertical high strain concentrations due to fibre …
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Combined Tension-Torsion Loading of Braided Composite Structures
… was used to derive detailed and continuous strain maps and understand buckling behaviour of TBCs. Benefitting from this research experiment, combined loading as a common and critical loading condition can be analyzed more realistically and accurately in designing elements out of braided …
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Biaxial Response of Individual Bonds in Thermomechanically Bonded Nonwoven Fabrics
… utilized to calculate local and average Eulerian strains of the bond during the initial stages of the test. The strain experienced by the bonds in the machine direction was always positive and increasing as the biaxial load increased. The strain in the cross direction, however, experienced …
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Influence of post-weld heat treatment (PWHT) on the tensile behaviour of P91 weldments
… the influence of PWHT on the occurrence of strain localisation in cross-weld tensile specimens tested at temperatures up to typical power plant service temperature. Localised strain maps were obtained during high temperature tensile deformation. These assist in understanding the influence of …
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TI Nano Powder Speckle Pattern Creation and Use in DIC of ZnO Modified Single Carbon Fibers
… inter-ply movement and reduces the processing strains and residual stresses. To fully understand the mechanism taking place at the interface, a microscale evaluation was conducted to determine the fiber-matrix interaction, analyzing the thermal behavior and cure kinetics due to increase fiber …
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Intramural mechanics in the human tongue
… relationships in the organ. In order to quantify strain in the human tongue, a non-invasive MRI tagging technique was used in combination with a fast asymmetric gradient echo imaging pulse sequence (TurboFLASH). This MRI technique discretize tissue into non-linear deforming elements. Individual …
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Investigation of Deformable Image Registration Based Lung Ventilation Mapping for Radiation Therapy Using a Hybrid Hyperpolarized Gas MRI Technique
… to deformation changes of ventilation and strain as lung functionality metrics. </p><p>This study investigates a unique dataset which includes three types of MR images acquired using a novel hybrid technique in a single breath-hold maneuver including a HP Helium-3 ventilation image, a pair …
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Strain relaxation in TEM lamellae probed by 4D-STEM: from projected strain to dynamical-diffraction-based reconstruction of composition
… necessary to determine material composition from strain measurements on the nanoscale, but it relies on thin, electron-transparent lamellae. In such lamellae, the tetragonal distortion established during epitaxial growth partially relaxes at the free surfaces created during specimen preparation. …
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Nanocomposite Coating Mechanics via Piezospectroscopy
… were similar to that observed from macroscale strain measurements such as a strain gage. When simple damage models were applied to monitor the elastic modulus, it was observed that the rate of decay for the elastic modulus was much higher for the PS measurements than for the strain gage. A …
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Multiscale characterization of carbon fiber-reinforced epoxy composites
… on the fiber surface. Full-field high resolution strain maps of composites under tension were generated using digital image correlation (DIC) in a scanning electron microscope (SEM). A newly developed procedure for reconfiguring sputtered thin films was optimized to produce appropriate surface …
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Atomic structure and defects of III-V compound semiconductor strained-layer-superlattices for infrared detection
… Devices based on the InAs/GaSb or InAs/InAsSb strained-layer-superlattices (SLSs) have gained special attention as the next generation IR photodetectors for replacing current technology based on mercury cadmium telluride. When in contact, InAs and GaSb (or InAs and InAsSb) forms the broken-band …