markocosic
01-14-2007, 05:00 PM
Thought you might like to see these pictures from the AutoSport show of "Osborn GT1000" 1.7734/15CVD6 tube (http://www.osbornmetals.com) as stocked by Tennant Metals. (http://www.tennant-metall.de/moto_de.htm)
http://www.cosic.org.uk/misc/15CVD6/IMG_7200.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7201.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7202.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7203.JPG
Bigger pictures here:
http://www.cosic.org.uk/misc/15CVD6/big/
The tube was constrained by clamping it at one end, then ramming it into a solid object. I've never seen anything thinwall deform so uniformly or do so without any cracking! http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
Tensile strength Rm = 1000/1200Mpa, Yield (Rp0.2) at least 790MPa, Elongation at least 12% and zero heat-treat required. 25 euros/kg mind! http://fsae.com/groupee_common/emoticons/icon_eek.gif
Who's volunteering to do the plastic deformation/energy absorbtion calcs...
http://www.cosic.org.uk/misc/15CVD6/IMG_7200.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7201.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7202.JPG
http://www.cosic.org.uk/misc/15CVD6/IMG_7203.JPG
Bigger pictures here:
http://www.cosic.org.uk/misc/15CVD6/big/
The tube was constrained by clamping it at one end, then ramming it into a solid object. I've never seen anything thinwall deform so uniformly or do so without any cracking! http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
Tensile strength Rm = 1000/1200Mpa, Yield (Rp0.2) at least 790MPa, Elongation at least 12% and zero heat-treat required. 25 euros/kg mind! http://fsae.com/groupee_common/emoticons/icon_eek.gif
Who's volunteering to do the plastic deformation/energy absorbtion calcs...