Hi Gavin, Are you sure that type of test is hat you should use. The below extract doesn't seem relavant to me.
Izod Impact The Izod impact strength of a material, measured by ASTM D 256 procedures, is the amount of energy necessary for a swinging pendulum to break a notched specimen that is secured at one end. The notch in the specimen acts as a stress concentrator or crack growth site. While the test gives a good indication of a material's notch sensitivity, the values may have little validity for the behaviour of unnotched parts in actual service. If the Izod impact strength of a particular resin increases as the notch radius increases, the resin is said to be notch-sensitive. For such resins, sharp corners should be eliminated from product designs whenever possible. For curved corners, the more generous the radius, the greater the impact strength of the corner. Barry Kruyssen k...@bigpond.com ----- Original Message ----- From: "Gavin Donohoe" <gavinandlou...@bigpond.com> To: "KR builders and pilots" <kr...@mylist.net> Sent: Thursday, September 11, 2003 4:30 PM Subject: KR>wood tester > Can anybody help me with an IZOD tester for wood ?? as here in Australia we are approved to use a local pine called Hoop and I need to test it's properties first. > > The tester uses a weight swinging and striking the test piece and measuring what the breaking ft/lb is. Maybe some can direct me to where I can find the instructions to make a tester?? > > Gav > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.514 / Virus Database: 312 - Release Date: 28/08/2003 > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html >
