To accommodate a larger range of hole sizes, a hollow expanding mandrel, having longitudinal slots and capable of expansion by a tapered plug, can be used.
The fatigue limit has been predicted for different materials and a wide range of hole radii.
These methods provide engineering approximations appropriate for design, but are intended to be general enough to accommodate the range of hole shapes, locations, and spacings common in industry.
There is often debate about what equivalent hole sizes should be used for a consequence study, and usually a range of hole sizes (3 4 values) is examined.
In this study, a complete database of hazard radii due to a broad range of hole sizes and release pressures was provided using available discharge and dispersion models.
Experimental results for perforated samples covering a range of hole diameters and porosities are presented in this paper for varying throughflow and acoustic intensities.
At room temperature, the Franck Condon density of states extends over a wide range of hole site energy difference, 0 1 eV, giving some hints about the design of oligonucleotides of potential technological interest.
Therefore, a comprehensive study was undertaken for single ring spargers, multiple ring spargers and spiders covering a wide range of hole diameters (2 6 mm), ring diameter (0.4 1 m), number of holes (19 90), number of rings (1 4), number of arms (3 5) and arm length (0.4 1 m).
In view of this a comprehensive study was undertaken for a single pipe sparger and ring sparger covering a wide range of hole diameters (2 6 mm), pitch (2 8do), pipe length (0.6 m and 1.5 m), ring diameter (0.38 0.57 m) and pipe diameter of rings (0.012 0.019 m).
The validated closed-form expressions and their associated limits are intended to be general enough to accommodate the range of hole shapes, locations, and spacings common in engineering practice, while at the same time also defining regimes where explicit use of shell finite element analyses is still needed for adequate accuracy.
Stiffened and unstiffened square and rectangular elements with wide ranges of hole diameter-to-spacing ratio and plate slenderness were studied.
