David has a job many would enjoy he gets to destroy things and build them only to destroy all in the name of science and betterment of daily use for the public. Like a kid making mud pies just to jump on them or throw them to see how they splat.
David invited Sue and I along with his mum Peggy to go into UTS his work place to have a look at his play area and the equipment. Nothing was in progress although a couple of things were in line for testing.
A few photos of the gear some very serious equipment at that.
Sue and I this is a test structure concrete beam similar to that used on Sydney Harbour Bridge.
Sensors placed with in the concrete attached to computers.
This is for a torsional twist Note the jacks.
Below David showing the reciprocating ram used to demolish wall structures a hydraulic operated repetitive motion is used bit like an over sized battering ram.
Below left:- 2 x 200t hydraulic compression jacks and the jig built to with stand the forces.
The above are a 30t and 50t jack compression jigs a special set up done by David and students. One of the magnetic base indicator stands which has attached an electronic sensor. A very long arm on this.
Below one of the concrete slabs which has reo bars through after a compression test ending with a central crack.
Here are some earlier works David has set up.
Left a Jarrah pole
Right a pole and ply bridge structure.
Below a concrete wall note the jacks between at top centre. Right after
Hydraulic power house for the general workings of major rams etc.
Plywood testing this was soaked for a number of days, it then was parted using a chisel to see what layers gave way or what glue gave way after the long period of being wet.
Thanks Dave for a most informative morning.