http://www.matweb.com/
http://www.tc.faa.gov/its/worldpac/techrpt/ar-mmpds-01.pdf
?http://femci.gsfc.nasa.gov/links.html
www.simwe.com
http://www.azom.com/
http://www.asme.org/index.html
http://www.intlmag.org/mechanical.aspx
http://www.mpif.org/
http://www.namtec.co.uk/metals/
thttp://www.steelynx.net/
http://www.machinedesign.com/ASP/enggMaterial.asp?catId=372
Fatigue:
http://femci.gsfc.nasa.gov/links.html
http://www.engineering-e.com/datamart/
http://www.ductile.org/didata/default.htm
Plastics:
http://matdata.net/index.jsp
http://www.materialdatacenter.com/materialdatacenter/matdb/matdb.php
http://iwww.plasticsportal.com/products/products.htmlSimWe
http://www.geplastics.com/resins/techsolution/designguide.html
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