Global ETD Search
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Showing 1 to 6 of 6 for “"linear damage accumulation"”.
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Damage accumulation of bovine bone under variable amplitude loads.
… by excessive fatigue in bone. This study into damage accumulation in bone sought to determine if the Palmgren-Miner rule (PMR), a well-known linear damage accumulation hypothesis, is predictive of fatigue failure in bone. An electromagnetic shaker apparatus was constructed to conduct cyclic and …
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Analysis and Modeling of the Mechanical Durability of Proton Exchange Membranes Using Pressure-Loaded Blister Tests
… histories. Ramped pressure tests are used with a linear viscoelastic analog to Hencky's classical solution for a pressurized circular membrane to estimate biaxial burst strength values. Biaxial strength master curves are constructed using traditional time-temperature superposition principle …
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A theoretical approach to the prediction of haemolysis in centrifugal blood pumps
… strongly depends on the extent to which they damage blood. The development of a theoretical pump evaluation model was performed in this study to facilitate an effective pump optimisation. The optimisation process seeks to maximise flow performance and minimise blood trauma which is primarily …
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Characterization and Lifetime Performance Modeling of Acrylic Foam Tape for Structural Glazing Applications
… durability in shear and tension. A simple linear damage accumulation model was then proposed to examine the accumulation of wind damage if VHB tape is used to attach curtain wall glazing panels to building facades. The purpose of the model was to investigate the magnitude of damage …
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The Effect of Catalyst Layer Cracks on the Mechanical Fatigue of Membrane Electrode Assemblies
… effect on the mechanical behavior of the MEAs. A linear damage accumulation model used the ABAQUS results to predict lifetimes of the membrane in the MEAs. The models showed that under volume-controlled loading, the stress decays with time and the stress dropped towards the edges of the blisters. …
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Measuring Material Properties of Proton Exchange Membranes using Pressure Loaded Blister Testing and Digital Image Correlation
The strength and durability of proton exchange membranes for use in fuel cells has received much attention recently due to the increased push for sustainable alternatives to the internal combustion engine. To be viable, these alternatives must have comparable lifetimes and power outputs to the …