1 Yield strength is the lowest stress that produces a permanent deformation in a material. 2  In some materials, like aluminium alloys, the point of yielding is difficult to identify, thus it is usually defined as the stress required to cause 0.2% plastic strain. 3  This is called a 0.2% proof stress.
This year's deadline to file your personal income tax return is midnight on May 5 â five days later than the usual Apr. 30 cutoff. You can thank that nasty Heartbleed computer bug for the extension, after it forced the Canada Revenue Agency to shut down its E-File system earlier in April.his year's deadline to file your personal income tax return is midnight on May 5 â five days later than the usual Apr. 30 cutoff. You can thank that nasty Heartbleed computer bug for the extension, after it forced the Canada Revenue Agency to shut down its E-File system earlier in April.
Canada - 2014. If an individual has self employment income, the filing deadlines are: a) Payment of expected tax due-April 30, 2015 b) Filing of tax return-June 15, 2015 Note: No extensions of filing deadlines are available in Canada.eadline for filing returns is: a) Death January 1 to October 31 - April 30 in year following death; b) Death November 1 to December 31 - Six months after date of death. The following deadline dates apply to Canadian returns which are required to be filed during 2013.