An energy absorber device is a device that is capable to convert one form of energy to the plastic deformation or another form of energy. Plastic deformation energy can be converted into several modes of deformation including axial crushing, inversion, splitting, lateral indentation and lateral flattening. The objective of this paper was to investigate the axial splitting and curling behavior of aluminium circular metal tubes which was compressed axially under static loading. An experimental investigation was carried out by using three types of dies with different semi-angles, a which was 45°, 60° and 75°. To ease the splitting process, the tube was introduced with 4 and 6 slits with the length of 5 mm at the leading edge of the tube. The slit prevented the tubes from buckling and estab...
The Calgary businessman was in Winnipeg Thursday to promote his company's innovative alternative to sandbagging -- bright-orange, water-filled tubes. [Paul Vickers] held a demonstration in the Pony Corral parking lot on Pembina Highway. Four of the tubes were filled with water to show their potential to keep rising water at bay.
News - Algoma Tubes - Brief Article
SPECIAL REPORT: SAULT STE. MARIE
Neuhaus Labs' T-2 Amplifier is built to own and outlive your digital music. Constructed largely of steel and featuring a slow power-on switch (which preserves components by taking 15 seconds to come to life), it's built to last. Speaker connectors are gold plated and computer connectivity bypasses the computer's own inferior sound card (Mac or PC), feeding the digital sound directly to the T2's own converter where it's then amplified using old-fashioned vacuum tubes. The T-2 has an industrial retro look with clearly visible tubes and a sound that adds life to sometimes harsh digital copies. Auxiliary inputs can accommodate an iPod or CD player, but don't expect docking functionality like power recharging. Looks sweet, but I wouldn't want to have to dust this thing. US$795 plus $40 shipp...
Settlement of soil around foundations and under concrete steps, sidewalks, & driveways is a normal occurrence due to erosion and other normal forces of nature. Building up the soil in these areas is critical to maintaining a dry basement, especially in older homes. The majority of minor moisture intrusion situations that I see in basements is directly attributable to a combination of poor grading and damaged or improperly routed downspouts. This is partially due to the property of our notorious Red River Valley clay that allows it to compact and shed surface water when properly sloped. The downside of this is that the soil will also shrink when dry and may leave gaps along the foundation that can channel water toward the foundation walls. This is most prevalent under concrete steps,...
...These were later replaced with concrete tubes, which served much the same function. These tubes ...
Three Canadian soldiers from 2nd Battalion Princess Patricia's Canadian Light Infantry based at CFB Shilo have been recognized for their outstanding courage, decisive action and devotion to duty under fire during operations in Afghanistan in the summer of 2006. Only 100 metres to their northwest, a pair of Taliban rocket-propelled grenade teams and a light machine gun team suddenly started laying down heavy fire on their position. A gunner in charge of firing mortar shells, Fletcher had set up his tubes in the middle of camp, but was in one of the LAV's at the edge of the circle at the time of the attack.
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