web-links: composite design, manufacture and testing
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web-links: composite design, manufacture and testing
Perhaps this would be a good thread to start - no matter what stage you are at or how far you want to take it.
http://www.vircon-composites.com/1sub.asp
http://www.vircon-composites.com/1sub.asp
Scroll down to page 5 where the text is also in english. Lot of good stuff in there!
http://wiki.r-g.de/images/6/69/R%26G_Ha ... pdf
Cheers, Christoph
http://wiki.r-g.de/images/6/69/R%26G_Ha ... pdf
Cheers, Christoph
Coming up with a 404. Dropping the .pdf appears to be the solution: http://wiki.r-g.de/images/6/69/R%26G_Handbuch
Base Material and Waxing
http://primateriasport.se/PDF/Peter_Stu ... iktion.pdf
Similar pictures as those captured by Davide.
Epoxy Wood Interface
Understanding the factors affecting the bond-line
http://www.fpl.fs.fed.us/documnts/pdf20 ... art001.pdf
Anatomy of various wood species
http://www.woodanatomy.ch/species_az.php
Materials Database - Physical Properties
http://www.matweb.com/
http://primateriasport.se/PDF/Peter_Stu ... iktion.pdf
Similar pictures as those captured by Davide.
Epoxy Wood Interface
Understanding the factors affecting the bond-line
http://www.fpl.fs.fed.us/documnts/pdf20 ... art001.pdf
Anatomy of various wood species
http://www.woodanatomy.ch/species_az.php
Materials Database - Physical Properties
http://www.matweb.com/
Last edited by Richuk on Mon Apr 01, 2013 1:14 pm, edited 1 time in total.
Void content, Pressure and Strength
G S Springer - Curing of Epoxy Matrix Composites
http://deepblue.lib.umich.edu/bitstream ... sequence=2
http://soar.wichita.edu/bitstream/handl ... sequence=1
G S Springer - Curing of Epoxy Matrix Composites
http://deepblue.lib.umich.edu/bitstream ... sequence=2
http://soar.wichita.edu/bitstream/handl ... sequence=1
Straight forward overview: http://www.umeco.com/~/media/Files/Gene ... osites.pdf
If I might be so arrogant, my undergrad thesis has methods for vibration testing and stiffness measurements for snowboards.
Vibration: https://www.pebblepad.com.au/rmit/viewa ... oid=277408
Stiffness: https://www.pebblepad.com.au/rmit/viewa ... oid=277420
Results/Discussion: https://www.pebblepad.com.au/rmit/viewa ... oid=277433
Vibration: https://www.pebblepad.com.au/rmit/viewa ... oid=277408
Stiffness: https://www.pebblepad.com.au/rmit/viewa ... oid=277420
Results/Discussion: https://www.pebblepad.com.au/rmit/viewa ... oid=277433
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Alex13 wrote:If I might be so arrogant, my undergrad thesis has methods for vibration testing and stiffness measurements for snowboards.
Vibration: https://www.pebblepad.com.au/rmit/viewa ... oid=277408
Stiffness: https://www.pebblepad.com.au/rmit/viewa ... oid=277420
Results/Discussion: https://www.pebblepad.com.au/rmit/viewa ... oid=277433
Good info! Testing stiffness and torsion can be done by DIY'er relatively easily with some ingenuity. I haven't found a decent way to test vibration that is meaningful for DIY.
Sirometer: http://www.treysit.com/16.html
Accelerometers: http://www.adafruit.com/products/163 connect it to a micro-controller, http://www.adafruit.com/products/50 and record the data: https://classic.parallax.com/tabid/393/Default.aspx. Video: Issue, ensuring the macros are enabled/disabled - can't remember which - within Excel.
Upgrade, IMU's using InvenSense mpu6050 - as used by the ski industry. Problem, lack of a suitable GUI (Graphical User Interface). Best option, MultiWii : Residual issue: http://www.multiwii.com/forum/viewtopic ... 1&start=30, http://www.multiwii.com/forum/viewtopic.php?f=6&t=2910.
Cost appears to be circa $50
Accelerometers: http://www.adafruit.com/products/163 connect it to a micro-controller, http://www.adafruit.com/products/50 and record the data: https://classic.parallax.com/tabid/393/Default.aspx. Video: Issue, ensuring the macros are enabled/disabled - can't remember which - within Excel.
Upgrade, IMU's using InvenSense mpu6050 - as used by the ski industry. Problem, lack of a suitable GUI (Graphical User Interface). Best option, MultiWii : Residual issue: http://www.multiwii.com/forum/viewtopic ... 1&start=30, http://www.multiwii.com/forum/viewtopic.php?f=6&t=2910.
Cost appears to be circa $50