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.
Form 1040, 1040A, or 1040EZ. April 15, 2015 the due date for filing your calendar year return (usually April 15). If you file on a fiscal year basis (a year ending on the last day of any month except December), the due date is 3 months and 15 days after the close of your fiscal year.U.S. Personal Income Tax Return for Individuals.or a 2014 calendar year return, this is April 15, 2015. However, if you have 2 extra months to file your return because you were âout of the countryâ, file Form 2350 on or before June 15, 2015. U.S. Personal Income Tax Return for Individuals.